Assembly Instructions¶
Introduction¶
Below are the assembly instructions for the v0.3 Holoseat controller. This version is built using an AdaFruit Feather 32u4 Basic Proto. It also includes a remotely mountable sensor board. You will need to use your soldering skills on this build.
Sensor Board Assembly¶
Tools¶
- Diagonal Cutters
- Wire Strippers
- Needle Nose Pliers
- Soldering Iron
- Utility Knife
- Punch Down Tool
Materials¶
- (1) HS001 - Double-Side Prototype PCB
- (1) HS002 - Category 5e Jack
- (2) HS003 - 750 OHM 1/2W 1% Axial Resistor
- (2) HS004 - OH090U Hall Effect Sensor
- (2) HS005 - Diffused Blue 3mm LED
- Hook up wire
- CAT5 internal wire
- Solder
Safety Issues¶
- Care must be taken when using sharp hand tools to avoid cuts
- Care must be taken when using the soldering iron, the tip is very hot
- Always wear safety glasses while working with soldering irons
- Avoid breathing in the soldering fumes, use a vent or hood if needed to provide adequate ventilation
Product¶
(1) Holoseat Sensor Board
Procedure¶
- Prepare Sensor/LED sub-assemblies
Repeat this procedure twice to assemble (2) Sensor/LED sub-assemblies
- Take (1) HS004 - OH090U Hall Effect Sensor and (1) HS005 - Diffused Blue 3mm LED from your supplies

- Solder the LED's anode (long leg) to pin 3 of the sensor (the data pin) and solder the LED's cathode (short leg) to pin 2 of the sensor (the ground pin) using the following steps
- Align the LED to it sits on top of the sensor with the long leg next to pin 3 and the short leg next to pin 2
- Wrap the LED's long leg around pin 3 to create a secure physical connection
- Wrap the LED's short leg around pin 2 to create a secure physical connection
- Apply solder to the two joints formed in the steps above to secure the connections between the LED and the sensor
- Cut approximately 40 cm lengths of black, red, and green hook up wire
- Strip both ends of the (3) lengths of hookup wire
- Solder the hookup wire to the ends of the sensor pins (red to pin 1, black to pin 2, and green to pin 3) using the following steps
- Wrap one end of the red hook up wire around pin 1 to create a secure physical connection
- Apply solder to the joint formed in the step above to secure the connections between the red hookup wire and pin 1
- Wrap one end of the black hook up wire around pin 2 to create a secure physical connection
- Apply solder to the joint formed in the step above to secure the connections between the black hookup wire and pin 2
- Wrap one end of the green hook up wire around pin 3 to create a secure physical connection
- Apply solder to the joint formed in the step above to secure the connections between the green hookup wire and pin 3
- Apply sufficient heat shrink to the three joints to cover them completely
- Apply larger heat shrink to the three leads made from the hookup wire to complete the Sensor/LED sub-assembly
- Prepare the HS002 - Category 5e Jack
- Cut approximately 15 cm each of the following colors of Cat5 internal wire: Blue/White, Green, Brown, Brown/White
- Strip one end of each length of Cat5 internal wire to allow for soldering
- Cut approximately 20 cm each of the following colors of hookup wire: (2) green, (1) red, (1) black
- Strip one end of each length of hookup wire
- Solder the hookup wire to the Cat5 internal wire using the following steps
- Wrap the stripped end of the Brown Cat5 internal wire around the stripped end of the red hookup wire to create a secure physical connection
- Apply solder to the joint formed in the step above to secure the connections between the Brown Cat5 internal wire and the red hookup wire
- Wrap the stripped end of the Brown/White Cat5 internal wire around the stripped end of the black hookup wire to create a secure physical connection
- Apply solder to the joint formed in the step above to secure the connections between the Brown/White Cat5 internal wire and the black hookup wire
- Wrap the stripped end of the Green Cat5 internal wire around the stripped end of a green hookup wire to create a secure physical connection
- Apply solder to the joint formed in the step above to secure the connections between the Green Cat5 internal wire and the green hookup wire
- Wrap the stripped end of the Blue/White Cat5 internal wire around the stripped end of the other green hookup wire to create a secure physical connection
- Apply solder to the joint formed in the step above to secure the connections between the Blue/White Cat5 internal wire and the other green hookup wire
- Use a punch down tool to connect the Cat5 internal wires to their corresponding positions on the HS002 - Category 5e Jack for pinout option A

- Finish the Sensor Board Assembly
Reference the image below for the following steps
