• Block Diagram
• BOM
• Budget
• Design Review
• Detailed Design
• General Overview
• Initial Questions
• Navigation
• Preliminary Design
• Requirements Document
• Schematics and PCB Files
• Sidebar
• Timeline
• Wiki

Power/Temp Monitor and Control System (EPS/ECLSS) Block Diagram¶

Power/Temp Monitor and Control System (EPS/ECLSS) Bill Of Materials¶

Power/Temp Monitor and Control System (EPS/ECLSS) Budget¶

Preliminary Budget¶

Power/Temp Monitor and Control System (EPS/ECLSS) Design Review¶

After the design is reviewed by the client and peers, issues will be posted here. Once these issues have been addressed, all tasks have been completed, and the parts have arrived, construction will begin.

06FEB2013 Client requested an engineering change to increase the current capacity from 10A to 20, survivable to 30.

Power/Temp Monitor and Control System (EPS/ECLSS) Detailed Design¶

• Power/Temp Monitor and Control System (EPS/ECLSS) Detailed Design
  • • Introduction
    • Design Criteria Review
    • Block Diagram
    • Schematic
    • Bill Of Materials
    • Preliminary Budget

Introduction¶

This is a temperature and power monitoring system for the radio/battery cabinets on wireless internet service providers (WISP) repeaters. Other uses of this project are satellite and HAB payloads. Attention will be paid to make the project multi-role, but not at the expense of the primary stakeholders (WISPs). The PCB design needs to be completed before assembly can begin. This will be completed while parts are on order, as some have a 2-3 week lead time in the quantities required.

Design Criteria Review¶

• EPSRR 1.1 The EPS board uses a Texas Instruments MSP430 microcontroller to measure and store the sensor data
• EPSRR 1.2 the EPS board is made from components which are rated beyond the specification as listed, and the system will operate without direct intervention by an operator.

• EPSRR 2.1 The EPS board is designed in such a way that it may be installed by any person with solar power or electrical wiring experience.
• EPSRR 2.2 The EPS board will have screw holes to mount the board using #10 screws. Alternatively, a DIN rail clip may be used.
• EPSRR 2.3 The EPS board can draw it's power from any 6-30VDC source.

• EPSRR 3.1 The EPS board shall measure predefined parameters.
  • EPSRR 3.1.1 The EPS board measures the ambient temperature in the enclosure using a sensor on the board.
  • EPSRR 3.1.2 The EPS board measures voltages of two separate circuits directly with a chip that has built in isolation.
  • EPSRR 3.1.3 The EPS board limits the input voltage to the sensor to safe levels using a zener and current limiter.
  • EPSRR 3.1.4 The EPS board measures the current of two separate circuits using a directly with a chip that has built in isolation.
• EPSRR 3.2 The EPS board transmits measurement data or fault conditions to the server using a MAC chip with full TCP/IP stack.
  • EPSRR 3.2.1 The EPS board will transmit measurement data on demand (web page request).
  • EPSRR 3.2.2 The EPS board will be capable of transmitting measurement data on a schedule (FTP or email).

• EPSRR 4.1 The EPS board consumes minimal power. Design maximum is 24mW.
• EPSRR 4.2 See EPSRR 2.3.
• EPSRR 4.3 The EPS board meets all criteria in this area, having a tolerance for massive overvoltage and 12 bit accuracy.
• EPSRR 4.4 The EPS board measures temperature within from -20 to 85C with 12 bit accuracy.
• EPSRR 4.5 The EPS board meets all criteria in this area, having a tolerance for massive overcurrent and 12 bit accuracy.
• EPSRR 4.6 The EPS board meets all criteria in this area, having a MAC controller IC with a fully functional TCP/IP stack and Ethernet Jack with Magnetics.

• EPSRR 6.1 The EPS board is read using standard web protocols which are standardized across all platforms.
• EPSRR 6.2 The EPS board uses standardized connections including Screw terminals and Ethernet.
• EPSRR 8.1 The EPS board is optimized for ease of production.
• EPSRR 8.2 See ESPRR 8.1.

• EPSRR 9.2 The production units appear to cost around $85.00 in parts.

• EPSRR 11.4 Attention has been paid into the durability of the design to keep waste to an absolute minimum.

Block Diagram¶

Schematic¶

Bill Of Materials¶

Preliminary Budget¶

General Overview¶

• General Overview
  • • Welcome
    • Philosophy
    • Getting Involved
    • History
    • Other Uses

Welcome¶

Welcome to the Power/Temp Monitor and Control System (EPS/ECLSS) project Wiki. This wiki contains documentation covering the design, development, fabrication, and use of the Power/Temp Monitor and Control System (EPS/ECLSS), a board designed to monitor power consumption and ambient temperature within an electronics enclosure and report it via Ethernet. The forums would be a good place to start if you have questions about the thought process behind an item. In most cases, links to the appropriate forum discussions will be included in the wiki pages.

Philosophy¶

The idea behind the Power/Temp Monitor and Control System (EPS/ECLSS) project is to start small and simple while meeting the existing need, and then build on what is learned when moving to more capable and complex systems later on. This is in line with Mach 30's philosophy of starting (literally) from the ground up to build the infrastructure required to facilitate safe, routine, reliable, and sustained access to space.

Getting Involved¶

If you're interested in getting involved a good place to start would be the Initial Questions page. There you will find the foundational questions that will guide the rest of the Power/Temp Monitor and Control System (EPS/ECLSS) design process. There is also the navigation bar at the right to help you find a specific section of the documentation quickly.

History¶

I was notified by a friend whom the client, a general manager for a Wireless Internet Service Provider (WISP), approached for a project which he wasn't sure could be done for a reasonable price. The challenge is to build a method of monitoring voltage, current, and temperature of a battery bank and the charge circuit. The reason this is a challenge is that it must be performed remotely at wireless repeater sites on remote mountaintops with the data being carried by the backhaul link back to a server. This was the start of the Power/Temp Monitor and Control System (EPS/ECLSS) project.

Other Uses¶

Other WISPs have similar needs, and the least expensive solution is around $2000.00 according to the client who recently attended an industry conference and conferred with his peers. The Power/Temp Monitor and Control System (EPS/ECLSS) project also has some substantial aerospace applications which will be addressed in the modular version 2.0 and beyond. This monitoring and control system may also be used to monitor power and temperature on High Altitude Balloons (HAB) and satellite payloads. This is the reason for the terms in the title enclosed in parentheses; EPS referrs to the Electrical Power Subsystem of a spacecraft, and ECLSS to the Environmental Control and Life Support Subsystem.

Power/Temp Monitor and Control System (EPS/ECLSS) Initial Questions¶

• Power/Temp Monitor and Control System (EPS/ECLSS) Initial Questions
  • • Q1. Why are we making this?
    • Q2. Who is this for?
    • Q3. How will this be used?
    • Q4. What features does it need to have (now)?
    • Q5. What features does it need to have (later)?
    • Q6. What are the legacy requirements?
    • Q7. Who's going to build this?
    • Q8. How many do we want to make?
    • Q9. What is the budget?
    • Q10. What is the timeline?
    • Q11. What waste products will be produced by the manufacture and/or operation of this?

Q1. Why are we making this?¶

This product is being made on request by a local business, a Wireless Internet Service Provider (WISP) who needs to monitor charge rate, currents, voltages, and temperatures in enclosures to estimate battery life and become informed of issues. These enclosures are at the top of 13-14,000 foot mountains and up radio towers, so durability and remote diagnostic information are the key.

Q2. Who is this for?¶

Primary client is a WISP, but the system will also work for HAB and satellite payloads with similar needs.

Q3. How will this be used?¶

The unit will monitor voltages and currents to determine system health and charge/discharge rates. This data coupled with ambient temperature sensing will accurately indicate battery life as well as provide diagnostic information before driving hundreds of miles, climbing to the top of a radio tower on the top of a snow covered peak only to find that you need a part which you did not bring with you.

Q4. What features does it need to have (now)?¶

• Low power consumption
• The ability to measure ambient temperature
• Measure current flow and voltage on two circuits
• Measurement data reported via Ethernet.

Q5. What features does it need to have (later)?¶

• Local serial communications to enable integration in HAB or satellite bus
• The ability to cut and engage power on local or remote command or by timer
• Power circuits monitored and controlled using remote boards connected by serial bus such as SPI
• Programmable sequenced power up, power down, and low power modes
• Multiple point temperature sensing
• Heater control circuits
• Extra GPIO for further sensing and control
• Simple setup and control by local web page

Q6. What are the legacy requirements?¶

• System must be able to operate on a lead acid battery at 12 or 24 VDC. These values represent 15-30 real volts during charging.
• System must be able to measure output of the solar array, which could go as high as 70 volts during an open circuit event.
• System must be able to operate at -40C to report issues in the worst conditions
• System must be able to operate at +80C to report issues in the worst conditions

Q7. Who's going to build this?¶

The production units for the client will be built in Aaron's lab facility which has a static safe workstation. As this is an open hardware design, anyone is welcome to build as many as they like.

Q8. How many do we want to make?¶

The initial production run is for about 40 units. As this is an open hardware design, anyone is welcome to build as many as they like.

Q9. What is the budget?¶

The price to beat for this system is $2000 per unit. My design goal is to keep it under $100 cost per unit which will be sold to the client at cost plus labor.

Q10. What is the timeline?¶

ASAP. This product was needed by the client before the onset of winter, but he didn't know it this was possible within his budget. Going to a national WISP conference, he determined that his need was common in the industry. The development schedule follows:

• Project inception on ODE - 29 JAN @ 1200 Completed
• SEP Step 1: Initial Questions - 29 JAN @ 1400 Completed
• SEP Step 2: Requirements Document - 29 Jan @ 1600 Completed
• SEP Step 3: Block Diagram - 29Jan @ 1900 Completed
• SEP Step 4: Preliminary Design - 30 Jan @ 1700 Completed
• SEP Step 6: Detailed Design - 31 Jan @ 1700 Completed, PCB layout scheduled for 25 FEB 2013
• SEP Step 7a: Design Review (filed) - 01 Feb @ 0800 Completed
• SEP Step 7b: Design Review (returned) - 04 Feb @ 1400
• SEP Step 8: Parts ordering - 04 Feb 1500
• SEP Step 9: Assembly - begins 18 Feb @ 0800 or earlier depending on parts availability
• SEP Step 10: Integration - none necessary. testing and deployment meet this need.
• SEP Step 11: Testing - begins immediately after assembly is complete and continues until delivery or deployment.
• SEP Step 12: Delivery/Deployment - 04 Mar @ 0800
• SEP Step 13: Disposal - Unknown, TBA

Q11. What waste products will be produced by the manufacture and/or operation of this?¶

Unknown. All E-waste must be handled in an environmentally responsible manner in compliance with applicable law.

Navigation¶

Power/Temp Monitor and Control System (EPS/ECLSS)¶

• General Overview

Systems Engineering Process¶

1. Initial Questions
2. Requirements Document
3. Block Diagram
4. Architecture Study
5. Preliminary Design
6. Detailed Design
7. Design Review
8. Procurement/Manufacture
9. Assembly
10. Testing
11. Deployment
12. Disposal

Documentation¶

1. Budget
2. Timeline
3. BOM
4. Schematics and PCB Files
5. Software Source Code
6. Assembly Instructions
7. Operating Manual
8. Safety Procedures
9. Software/Firmware Summary
10. Meeting Minutes
11. Licensing and Attribution
12. Errata

EPS Preliminary Design¶

• EPS Preliminary Design
  • • Introduction
    • Preliminary Design Criteria Review
    • Preliminary Schematic
    • Preliminary Bill Of Materials
    • Preliminary Budget

Introduction¶

This design document is broken down in to multiple sections: the Preliminary Design Criteria Review, the Preliminary Schematic, the Preliminary Bill of Materials, and finally the Preliminary Budget. Each of these sections has information which is preliminary in nature, yet attempts have been made to make these as accurate as possible.

Preliminary Design Criteria Review¶

• EPSRR 1.1 The EPS board uses a Texas Instruments MSP430 microcontroller to measure and store the sensor data
• EPSRR 1.2 the EPS board is made from components which are rated beyond the specification as listed, and the system will operate without direct intervention by an operator.

• EPSRR 2.1 The EPS board is designed in such a way that it may be installed by any person with solar power or electrical wiring experience.
• EPSRR 2.2 The EPS board will have screw holes to mount the board using #10 screws. Alternatively, a DIN rail clip may be used.
• EPSRR 2.3 The EPS board can draw it's power from any 6-30VDC source.

• EPSRR 3.1 The EPS board shall measure predefined parameters.
  • EPSRR 3.1.1 The EPS board measures the ambient temperature in the enclosure using a sensor on the board.
  • EPSRR 3.1.2 The EPS board measures voltages of two separate circuits directly with a chip that has built in isolation.
  • EPSRR 3.1.3 The EPS board limits the input voltage to the sensor to safe levels using a zener and current limiter.
  • EPSRR 3.1.4 The EPS board measures the current of two separate circuits using a directly with a chip that has built in isolation.
• EPSRR 3.2 The EPS board transmits measurement data or fault conditions to the server using a MAC chip with full TCP/IP stack.
  • EPSRR 3.2.1 The EPS board will transmit measurement data on demand (web page request).
  • EPSRR 3.2.2 The EPS board will be capable of transmitting measurement data on a schedule (FTP or email).

• EPSRR 4.1 The EPS board consumes minimal power. Design maximum is 24mW.
• EPSRR 4.2 See EPSRR 2.3.
• EPSRR 4.3 The EPS board meets all criteria in this area, having a tolerance for massive overvoltage and 12 bit accuracy.
• EPSRR 4.4 The EPS board measures temperature within from -20 to 85C with 12 bit accuracy.
• EPSRR 4.5 The EPS board meets all criteria in this area, having a tolerance for massive overcurrent and 12 bit accuracy.
• EPSRR 4.6 The EPS board meets all criteria in this area, having a MAC controller IC with a fully functional TCP/IP stack and Ethernet Jack with Magnetics.

• EPSRR 6.1 The EPS board is read using standard web protocols which are standardized across all platforms.
• EPSRR 6.2 The EPS board uses standardized connections including Screw terminals and Ethernet.
• EPSRR 8.1 The EPS board is optimized for ease of production.
• EPSRR 8.2 See ESPRR 8.1.

• EPSRR 9.2 The production units appear to cost around $85.00 in parts.

• EPSRR 11.4 Attention has been paid into the durability of the design to keep waste to an absolute minimum.

Preliminary Schematic¶

Preliminary Bill Of Materials¶

Preliminary Budget¶

Power/Temp Monitor and Control System (EPS/ECLSS) Requirements Document¶

• Power/Temp Monitor and Control System (EPS/ECLSS) Requirements Document
  • • Introduction
    • Technical Requirements
    • Project Requirements
    • Future V2.0 Requirements
    • Glossary

Introduction¶

This requirements document is currently being discussed on the forums here. The requirements list matches up to the Initial Questions in step one of the Systems Engineering process as shown below. Each requirement is labeled with GSR (Ground Station Requirement), followed by the number of the initial question that the requirement corresponds to, followed by a dot and then the ID number of the requirement.

• EPSR 1.x - Why are we making this?
• EPSR 2.x - Who is this for?
• EPSR 3.x - How will this be used?
• EPSR 4.x - What features does it need to have (now)?
• EPSR 5.x - What features does it need to have (later)?
• EPSR 6.x - What are the legacy requirements?
• EPSR 7.x - Who's going to build this?
• EPSR 8.x - How many do we want to make?
• EPSR 9.x - What is the budget?
• EPSR 10.x - What is the timeline?
• EPSR 11.x - What waste products will be produced by the manufacture and/or operation of this?

Technical Requirements¶

Technical requirements are those requirements which include measurable performance values. Each technical requirement should be verified through testing to ensure the design meets the requirement.

• EPSR 1.1 The EPS board shall measure parameters and store them for transmission to a server.
• EPSR 1.2 the EPS board must be capable of operating in the environment at the client's site.
  • EPSR 1.2.1 The EPS board shall be able to operate at -40C to +80C temperatures.
  • EPSR 1.2.2 The EPS board shall be able to operate at 5000M altitude.
  • EPSR 1.2.3 The EPS board shall perform all functions without direct intervention by an operator.

• EPSR 2.2 The EPS board shall be designed to be mounted securely within an enclosure.
• EPSR 2.3 The EPS board shall be designed to operate on battery supplies from 12 through 30VDC.

• EPSR 3.1 The EPS board shall measure predefined parameters.
  • EPSR 3.1.1 The EPS board shall measure the ambient temperature in the enclosure using a sensor on the board.
  • EPSR 3.1.2 The EPS board shall measure voltages of two separate circuits which must be scaled and buffered using an op-amp.
  • EPSR 3.1.3 The EPS board shall limit the input voltage to the op-amp to safe levels.
  • EPSR 3.1.4 The EPS board shall measure the current of two separate circuits using a sensor with isolation between the sensed circuit and data line.
• EPSR 3.2 The EPS board shall transmit measurement data or fault conditions to the server.
  • EPSR 3.2.1 The EPS board shall transmit measurement data on demand (web page request).
  • EPSR 3.2.2 The EPS board shall be capable of transmitting measurement data on a schedule (FTP or email).

• EPSR 4.1 The EPS board shall consume minimal power. Design maximum is 250mW.
• EPSR 4.2 The EPS board shall derive it's power from one of the monitored circuits.
• EPSR 4.3 The EPS board shall measure voltage from two separate circuits within the following parameters:
  • EPSR 4.3.1 From 0-30VDC directly.
  • EPSR 4.3.2 From 0-60VDC scaled.
  • EPSR 4.3.3 Handle up to 120VDC clipped.
  • EPSR 4.3.4 Have a minimum of 10 bit accuracy (0.03VDC at 30VDC full scale input).
• EPSR 4.4 The EPS board shall measure temperature within the following parameters:
  • EPSR 4.4.1 From -20 to 85C.
  • EPSR 4.4.2 Have a minimum of 10 bit accuracy (0.1C within the full temperature range).
• EPSR 4.5 The EPS board shall measure current from two separate circuits within the following parameters:
  • EPSR 4.5.1 From 0-20 Amps directly.
  • EPSR 4.5.2 Response time within 5us.
  • EPSR 4.5.3 Less than or equal to a 1.5% output error at 25 degrees C.
  • EPSR 4.5.4 Less than a 5mOhm internal sensor resistance.
  • EPSR 4.5.5 Have greater than a 1kV isolation.
  • EPSR 4.5.6 Have a minimum of 10 bit accuracy (.5mA at 5A full scale input).
• EPSR 4.6 The EPS board shall have an Ethernet networking capability.
  • EPSR 4.6.1 The EPS board shall have an RJ45 jack with full magnetics on the board.
  • EPSR 4.6.2 The EPS board shall have a MAC controller IC with a fully functional TCP/IP stack.
  • EPSR 4.6.3 The EPS board shall display a page for at least one requester displaying measurement data.
  • EPSR 4.6.4 The EPS board shall be capable of periodic transmission, sending measurement data via FTP or email.

• EPSR 6.1 Any software to communicate, manage, or display data from the EPS board should run on all three major PC platforms (MS Windows, Mac OS X, and Linux).
• EPSR 6.2 The EPS board must use standardized connections to allow for greater flexibility in it's deployment (Screw terminals, USB, Ethernet, or similar connections).

• EPSR 7.1 The production units for the client will be built in a static safe facility.
• EPSR 7.2 The production units will be tested to comply with customer needs and burned in for a minimum of 24 hours using simulated or real loads.

Project Requirements¶

Project requirements are the remaining requirements which are not tied to specific performance values.

• EPSR 2.1 The EPS board shall be designed in such a way that it may be installed by any person with solar power or electrical wiring experience.
• EPSR 2.4 The EPS board must be well documented so as to meet the needs of WISPs and open source spaceflight designers who will design and build future equipment requiring power and thermal management (at Mach 30 and elsewhere).
• EPSR 2.5 The EPS board documentation and procedures must be complete enough that Mach 30 operators, students and educators who want to bring electronics, power control, or aerospace engineering into the classroom, and anyone else interested in how to manage power can learn how.
• EPSR 2.6 The EPS board documentation must cover the installing the EPS board, basic operation, communications, and protocols.
• EPSR 2.7 The EPS board installation manual shall include a section on safety to include electrical safety and precautions necessary to install the unit safely.

• EPSR 8.1 The initial production will be up to the client, but is anticipated at about 20 units.
• EPSR 8.2 Whenever and wherever possible, considerations should be made so that the design of the EPS board and it's components allow it to be used in a kit in the future.

• EPSR 9.1 The initial development of the design shall not cost over $2000.00.
• EPSR 9.2 The production units shall not cost over $100.00 in parts.
• EPSR 9.3 The production units shall be sold to the client at cost plus labor, not to exceed $150.00 per unit delivered.
• EPSR 9.4 Installation at remote sites will be available at a negotiated rate.

• EPSR 10.1 This project is a quick development project with immediate need. Once orders or prerequisites are filled, the project immediately will move to the next stage.

• EPSR 11.1 Where an EPS board fails the test, a repair will be attempted and the board retested to limit E-waste.
• EPSR 11.2 All E-waste must be handled in an environmentally responsible manner in compliance with applicable law.
• EPSR 11.3 Any components that wear out, fail, or are damaged must be disposed up according to all federal, state and local guidelines in the US, or as regulations require in other parts of the world.
• EPSR 11.4 Attention shall be paid into the durability of the design to keep waste to an absolute minimum.

Future V2.0 Requirements¶

These specifications are for reference only so that future features can be accommodated in the current design where practical.

Version 2.0:

• EPSR 5.1 Future EPS boards may have local serial communications to enable integration in HAB or satellite bus.
• EPSR 5.2 Future EPS boards may have the ability to cut and engage power on local or remote command or by timer.
• EPSR 5.3 Future EPS boards may have power circuits monitored and controlled using remote boards connected by serial bus such as SPI.
• EPSR 5.4 Future EPS boards may have programmable sequenced power up, power down, and low power modes.
• EPSR 5.5 Future EPS boards may have multiple point temperature sensing.
• EPSR 5.6 Future EPS boards may have heater control circuits.

• EPSR 5.7 Future EPS boards may have extra GPIO for further sensing and control.
• EPSR 5.8 Future EPS boards may have simple setup and control by local web page.
• EPSR 5.9 Future EPS boards may have multiple power modes based upon mission profiles.
• EPSR 5.10 Future EPS boards may support IPv6.

Glossary¶

ADC - Analog to digital converter.
Buffered - Indirect connection which allows input which would potentially be destructive to the unit to be handled safely.
Burn-in - A practice to test all production units under load for a proscribed time, causing and failures to occur during testing instead of after deployment.
Clipped - In this instance, preventing input which would be damaging to components from exceeding a certain level.
ECLSS - Environmental Control and Life Support Subsystem, a component block of a spacecraft or HAB payload.
EPS - Electrical Power Subsystem, a component block of a spacecraft or HAB payload.
GPIO - General Purpose Input and Output, a way of connecting a sensor to a computer or microcontroller.
HAB - High Altitude Balloon
Hall effect - The production of voltage transverse to an electric current in the conductor and a magnetic field perpendicular to the current.
Hall effect sensor - A sensor which uses the hall effect to detect a magnetic field or electric current.
Isolation - In this instance, the ability of a sensor to prevent high voltage from a sensed circuit from crossing over to the sensor's data connection.
MAC controller - A chip which contains all the electrical and logic circuits to connect to Ethernet connections.
Magnetics - The passive components on an Ethernet jack which prevent noise and cross talk from impacting the flow of high speed data.
Microcontroller - A small single purpose computer generally used for instrumentation and control applications.
Op-amp - An electronic component which can be used to change signal levels up or down to match the recipient component's abilities.
Resolution - In this instance, the number of bits used in the ADC divided by the full scale value. This yields the value per binary step.
Scaled - In this instance, the practice of using an op-amp to reduce a signal by a set percentage or ratio.
WISP - Wireless Internet Service Provider.

Power/Temp Monitor and Control System (EPS/ECLSS) Schematics and PCB Files¶

Schematic Diagram:¶

PCB Files¶

PCB layout will be complete by 25 FEB 2013.

Navigation¶

Power/Temp Monitor and Control System (EPS/ECLSS)¶

• General Overview

Systems Engineering Process¶

1. Initial Questions
2. Requirements Document
3. Block Diagram
4. Preliminary Design
5. Detailed Design
6. Design Review
7. Procurement/Manufacture
8. Assembly
9. Integration
10. Testing
11. Delivery/Deployment
12. Disposal

Documentation¶

1. Budget
2. Timeline
3. BOM
4. Schematics and PCB Files
5. Software Source Code
6. Assembly Instructions
7. Operating Manual
8. Safety Procedures
9. Software/Firmware Summary
10. Meeting Minutes
11. Licensing and Attribution
12. Errata
13. Versions

Power/Temp Monitor and Control System (EPS/ECLSS) Timeline¶

Wiki¶

Welcome to the Power/Temp Monitor and Control System (EPS/ECLSS) project Wiki. This wiki contains documentation covering the design, development, fabrication, and use of the Power/Temp Monitor and Control System (EPS/ECLSS), a board designed to monitor power consumption and ambient temperature within an electronics enclosure and report it via Ethernet. The forums would be a good place to start if you have questions about the thought process behind an item. In most cases, links to the appropriate forum discussions will be included in the wiki pages.

The idea behind the Power/Temp Monitor and Control System (EPS/ECLSS) project is to start small and simple while meeting the existing need, and then build on what is learned when moving to more capable and complex systems later on. This is in line with Mach 30's philosophy of starting (literally) from the ground up to build the infrastructure required to facilitate safe, routine, reliable, and sustained access to space.

If you're interested in getting involved a good place to start would be the Initial Questions page. There you will find the foundational questions that will guide the rest of the Power/Temp Monitor and Control System (EPS/ECLSS) design process. There is also the navigation bar at the right to help you find a specific section of the documentation quickly.