This board breaks out the Talon SRX pins into a more easily usable 3-wire configuration that's compatible with standard servo cabling.
For additional configuration of the Talon SRX to take advantage of this board, see the Talon SRX User's guide
The 4 3-wire connectors simply match servo cable order. Since switches generally don't care about voltage, all 3-wire signals use 3.3V. The voltage for the Analog Input Signal pin MUST be 3.3V in order to avoid damage to the Talon SRX.
| Connection Name | Pin 1 | Pin 2 | Pin 3 |
|---|---|---|---|
| Forward Limit Switch | GND | 3.3V | Signal |
| Reverse Limit Switch | GND | 3.3V | Signal |
| Quadrature Index Switch | GND | 3.3V | Signal |
| Analog Input | GND | 3.3V | Signal |
The 4 wire quadrature encoder has a slightly different configuration. In addition, a solder jumper on the reverse side of the board allows for a configurable voltage. This is needed since some encoder boards require 5V signals, rather than the 3.3V.
| Connection Name | Pin 1 | Pin 2 | Pin 3 | Pin 4 |
|---|---|---|---|---|
| Quadrature Encoder | GND | 3.3V or 5V | Signal A | Signal B |
Quantity | Description | Part Number |link --------:|-----|------------------------|-------------|--- 4 | 3-pin 0.1" header | Generic | Digikey 1 | 4-pin 0.1" header | Generic | Digikey 1 | 14-position 0.5" header | FCI 20021321-00014T4LF | Digikey 2 | 10k resistor (0603 package) | Generic | Digikey 2 | Jumper wires | Generic 22 gauge wire |
- Assemble the surface mount components to the bottom of the board
- Solder the jumper to select the voltage for the quadrature encoder.
- Attach the wire jumpers. These jumpers only work as spacers between the Talon SRX and the PCB. This helps stabilize the connector, and prevent shorting against the 0.1" headers.
- Attach the 0.1" headers so they face away from the body of the Talon SRX
- Place a piece of electrical tape over the bottom of the board, covering the 0.1" headers, resistors, and solder jumpers.
- Remove the screws on the Talon SRX
- Gently connect the backside connector to the Talon SRX.
- Re-insert the screws, and tighten gently. Do not use excessive force*
- Using significant force on the screws can damage the Talon SRX. It can also cause the 0.1" joints to punch through the electrical tape, causing signal errors or power shorting. The jumper wires will help provide spacing to prevent these issues.
This is a passive wiring board, and contains no active components.