VOXL 2 Offboard Sensors
Table of contents
VOXL2 IO / RC Input
VOXL 2 IO provides the ability to extend VOXL 2 with PWM outputs and additional supported RC inputs and can connect here.
J19: Full pinouts for all the connects are available here.
| Pin # | Signal Name | Notes |
|---|---|---|
| 1 | Not used for RC | |
| 2 | Not used for RC | |
| 3 | Not used for RC | |
| 4 | Not used for RC | |
| 5 | Not used for RC | |
| 6 | Not used for RC | |
| 7 | Not used for RC | |
| 8 | Not used for RC | |
| 9 | VREG_3P3V_RC | RC power *, controllable via GPIO 159 |
| 10 | RCIO_UART_TX (Output) | SSC_QUP7, 3.3V signal levels |
| 11 | RCIO_UART_RX (Input) | SSC_QUP7, 3.3V signal levels |
| 12 | GND |
GPS (GNSS/Mag)
An external GPS (GNSS/Mag) can be connected to VOXL 2’s J19 connector.
| Name / Designator | Description | Interface |
|---|---|---|
| GNSS UART / exposed via J19 | PX4 GNSS | SSC_QUP6, 2W UART, SLPI (sDSP) |
| Mag I2C / exposed via J19 | PX4 Mag | SSC_QUP0, I2C, SLPI (sDSP) |
J19: Full pinouts for all the connects are available here.
| Pin # | Signal Name | Notes |
|---|---|---|
| 1 | VDC_5V_LOCAL | GNSS/Mag power * |
| 2 | GNSS TX 3P3V | slpi_proc, SSC_QUP7 |
| 3 | GNSS RX 3P3V | slpi_proc, SSC_QUP7 |
| 4 | MAG SCL 3P3V | slpi_proc, SSC_QUP1 |
| 5 | MAG SDA 3P3V | slpi_proc, SSC_QUP1 |
| 6 | GND | |
| 7 | Not used for GNSS/Mag | |
| 8 | Not used for GNSS/Mag | |
| 9 | Not used for GNSS/Mag | |
| 10 | Not used for GNSS/Mag | |
| 11 | Not used for GNSS/Mag | |
| 12 | Not used for GNSS/Mag |
Power Monitoring
Although not technically onboard VOXL 2, using the VOXL Power Module v3 provides the ability to monitor battery voltage and regulated 5VDC voltage from the power module.
| Name / Designator | Description | Interface | Driver |
|---|---|---|---|
| PX4 Power Monitoring (J4) | QTY2 INA231 | SSC_QUP2, I2C, SLPI (sDSP), Addrs: 0x44h and 0x45h | voxlpm |
J4: Full pinouts for all the connects are available here.
| Pin# | Signal | Notes/Usage |
|---|---|---|
| 1 | VDCIN_5V | DC from Power Module, “unprotected” |
| 2 | GND | Power Module Return |
| 3 | I2C_CLK | SSC_QUP_1, 5V signal levels, Pullups on Power Module |
| 4 | I2C_SDA | SSC_QUP_1, 5V signal levels, Pullups on Power Module |
Full pinouts for all the connects are available here.
External SPIs
The following SPI busses are available from the applications processor.
| Name / Designator | Description | Interface |
|---|---|---|
| SPI0 / exposed via J6 | camera group 0 SPI | /dev/spidev0.0 |
| SPI1 / exposed via J7 | camera group 1 SPI | /dev/spidev1.0 |
| SPI14 / exposed via J10 | external SPI | /dev/spidev14.0 |
Full pinouts for all the connects are available here.
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