GPIO Module - hampussandberg/HexConnect GitHub Wiki
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Schematics can be found here.
The GPIO module can be used for any signal that is 3.3V/5V, i.e. UART serial channels, I2C or just as inputs or outputs.
- Module ID: 1
- Fully isolated power and signals
- Outputs can be disconnected with a relay
- Two channels that can be set to TX/OUTPUT or RX/INPUT independently with CTRL pins
- IN_A: OUT_A - Outgoing data on channel A
- IN_B: IN_A - Incoming data on channel A
- IN_C: SWITCH - a HIGH signal switches the output relay ON and connects the outputs to the connector
- IN_D: ID - Used to set the module ID
- IN_E: CTRL_B - A HIGH signal sets channel B to an output and a LOW signal sets it to an input
- IN_F: CTRL_A - A HIGH signal sets channel A to an output and a LOW signal sets it to an input
- IN_G: OUT_B - Outgoing data on channel B
- IN_H: IN_B - Incoming data on channel B
- OUT_A: 5V isolated
- OUT_B: GND isolated
- OUT_C: CH_A_SWITCHED - The switched channel A pin
- OUT_D: CH_B_SWITCHED - The switched channel B pin
- GPIO
- UART
The board is 4 layer, 23.5x28 mm.
Mechanical Drawing