SolarEnergyRacers
Solar Car Control System
ESP32 Pinout & Wiring
Wiring:
Wiring / Port Usage
| Device:Port |
Functionality |
| ESP32 |
main micro processor |
| ESP32:22 |
I2C:SCL |
| ESP32:23 |
I2C:SDA |
| ESP32:15 |
SERIAL:TX |
| ESP32:16 |
SERIAL:RX |
| ESP32:18 |
SPI:MOSI |
| ESP32:19 |
SPI:MISO |
| ESP32:5 |
SPI:CLK |
| ESP32:12 |
1Wire |
| ESP32:13 |
GPIO:LED_BUILTIN |
| ESP32:33 |
GPIO:PCF8574_INTERRUPT |
| ESP32:14 |
SPI:CS_SD_CARD |
| ESP32:32 |
SPI:CS_TFT_SCREEN |
| ESP32:4 |
SPI:DC |
| ESP32:21 |
SPI:RST |
| ESP32:25 DAC |
CAN:TX |
| ESP32:26 DAC |
CAN:RX |
| ADS1x15 |
Analog to digital converter |
| ADC0, I2C Addr 0x48 |
|
| ADC0:0 |
motor controller, speed indication |
| ADC0:1 |
Ibat: battery current sensor |
| ADC0:2 |
Imot: motor current sensor |
| ADC0:3 |
Ipv: pv current sensor |
| ADC1, I2C Addr 0x49 (TODO: can be set??) |
|
| ADC1:0 |
Ubat: battery voltage (analog) |
| ADC1:1 |
Umot: motorcontroller voltage |
| ADC1:2 |
|
| ADC1:3 |
|
| ADC2, I2C Addr 0x50 (TODO: can be set??) |
|
| ADC2:0 |
steering wheel acceleration piezo |
| ADC2:1 |
steering wheel deceleration piezo |
| ADC2:2 |
|
| ADC2:3 |
|
| MCP23014 |
Input/Output extender |
| IOExt0, I2C Addr (TODO) |
|
| IOExt0:0 in |
switch (status): battery on/off |
| IOExt0:1 in |
switch (status): PV on/off |
| IOExt0:2 in |
switch (status): motor on/off |
| IOExt0:3 |
mc: eco/power |
| IOExt0:4 |
mc: on/off |
| IOExt0:5 in |
switch (status): fwd/rwd |
| IOExt0:6 |
pv: on/off |
| IOExt0:7 |
output: battery fan on/off |
| IOExt1, I2C Addr (TODO) |
|
| IOExt1:0 |
output: left indicator |
| IOExt1:1 |
output: right indicator |
| IOExt1:2 |
output: horn |
| IOExt1:3 |
output: head light |
| IOExt1:4 |
output: light |
| IOExt1:5 |
|
| IOExt1:6 |
|
| IOExt1:7 |
|
| IOExt2, I2C Addr (TODO) |
steering wheel buttons |
| IOExt2:0 |
button: left indicator |
| IOExt2:1 |
button: right indicator |
| IOExt2:2 |
button: head light |
| IOExt2:3 |
button: light |
| IOExt2:4 |
button: horn |
| IOExt2:5 |
button: next |
| IOExt2:6 |
button: power/speed |
| IOExt2:7 |
button: set/reset |
| ILI9341 |
3.2" 320x240 display |
| ILI9341: CS |
see ESP32:SPI:CS_TFT_SCREEN |
| ILI9341: MOSI |
see ESP32:SPI:MOSI |
| ILI9341: MISO |
see ESP32:SPI:MISO (Pull Down: 10kΏ to GND) |
| ILI9341: CLK |
see ESP32:SPI:CLK |
| ILI9341: D/S |
Pull Down: 10kΏ to GND |
| ILI9341: SD_CS |
|
| DS1803 |
digital potentiometer |
| SCL:8 |
see ESP32:I2C:SCL |
| SDA:9 |
see ESP32:I2C:SDA |
| H0:12 |
VCC at 5V Powersupply |
| W0:10 |
MC:acceleration input |
| L0:11 |
GND at 5V Powersupply + ESP32:GND |
| H1:1 |
VCC at 5V Powersupply |
| W1:3 |
MC: deceleration input |
| L1:2 |
GND at 5V Powersupply + ESP32:GND |
| A0:6 |
GND for address 0x28 |
| A1:5 |
GND for address 0x28 |
| A0:4 |
GND for address 0x28 |
| RTC |
real time clock |
| SCL |
see ESP32:I2C:SCL |
| SDA |
see ESP32:I2C:SDA |
| Gyro&Acc |
gyroscope & accelerator |
| SCL |
see ESP32:I2C:SCL |
| SDA |
see ESP32:I2C:SDA |
| Temp |
temperature sensor |
| Temp0 |
see ESP32:1Wire |
| Temp1 |
see ESP32:1Wire |
| Temp2 |
see ESP32:1Wire |
| Temp3 |
see ESP32:1Wire |
| SD |
sd card |
| CS |
see ESP32:SPI:CS_SD_CARD |
| MOSI |
see ESP32:MOSI |
| MISO |
see ESP32:MISO |
| CLK |
see ESP32:CLK |
| D/S |
required? |
| Serial |
serial telemetry communication |
| RX |
see ESP32:SERIAL:RX |
| TX |
see ESP32:SERIAL:TX |
| MPPT |
maximum power point tracking communication |
| CAN Lo |
see ESP32:CAN:Lo |
| CAN Hi |
see ESP32:CAN:Hi |
| BMS |
battery management system communication |
| CAN Lo |
see ESP32:CAN:Lo |
| CAN Hi |
see ESP32:CAN:Hi |
| ILI9341 |
3.2" 320x240 display |
| CS |
see ESP32:SPI:CS_TFT_SCREEN |
| MOSI |
see ESP32:SPI:MOSI |
| MISO |
see ESP32:SPI:MISO (Pull Down: 10kΏ to GND) |
| CLK |
see ESP32:SPI:CLK |
| D/S |
Pull Down: 10kΏ to GND |
| DS1803 |
digital potentiometer |
| SCL:8 |
see ESP32:I2C:SCL |
| SDA:9 |
see ESP32:I2C:SDA |
| H0:12 |
VCC at 5V Powersupply |
| W0:10 |
MC:acceleration input |
| L0:11 |
GND at 5V Powersupply + ESP32:GND |
| H1:1 |
VCC at 5V Powersupply |
| W1:3 |
MC: deceleration input |
| L1:2 |
GND at 5V Powersupply + ESP32:GND |
| A0:6 |
GND for address 0x28 |
| A1:5 |
GND for address 0x28 |
| A0:4 |
GND for address 0x28 |
| RTC |
real time clock |
| SCL |
see ESP32:I2C:SCL |
| SDA |
see ESP32:I2C:SDA |
| Gyro&Acc |
gyroscope & accelerator |
| SCL |
see ESP32:I2C:SCL |
| SDA |
see ESP32:I2C:SDA |
| Temp |
temperature sensor |
| Temp0 |
see ESP32:1Wire |
| Temp1 |
see ESP32:1Wire |
| Temp2 |
see ESP32:1Wire |
| Temp3 |
see ESP32:1Wire |
| SD |
sd card |
| CS |
see ESP32:SPI:CS_SD_CARD |
| MOSI |
see ESP32:MOSI |
| MISO |
see ESP32:MISO |
| CLK |
see ESP32:CLK |
| D/S |
required? |
| Serial |
serial telemetry communication |
| RX |
see ESP32:SERIAL:RX |
| TX |
see ESP32:SERIAL:TX |
| MPPT |
maximum power point tracking communication |
| CAN Lo |
see ESP32:CAN:Lo |
| CAN Hi |
see ESP32:CAN:Hi |
| BMS |
battery management system communication |
| CAN Lo |
see ESP32:CAN:Lo |
| CAN Hi |
see ESP32:CAN:Hi |
Further Documentation and Findings
PlatformIO - Command Guide
Build project: platformio run
Upload firmware: platformio run --target upload
Build specific environment: platformio run -e esp32dev
Upload firmware for the specific environment: platformio run -e esp32dev --target upload
Monitor device: platformio run device monitor
Clean build files: platformio run --target clean
License
This project is published under the GNU General Public License v3.0.