ESP32 - Core board
The esp32-coreboard-v2 is a development board based on the Espressif ESP32 a powerful chip that is used on many different board mostly because of the built-in radio that can be used for WiFi or Bluetooth wireless connections.
Interfaces
| Interface | Hardware Supported | TinyGo Support |
|---|---|---|
| GPIO | YES | YES |
| UART | YES | YES |
| SPI | YES | YES |
| I2C | YES | YES |
| ADC | YES | Not yet |
| PWM | YES | Not yet |
| USBDevice | NO | NO |
| WiFi | YES | Not Yet |
| Bluetooth | YES | Not yet |
Pins
| Pin | Hardware pin | Alternative names |
|---|---|---|
CLK |
GPIO6 |
|
CMD |
GPIO11 |
|
IO0 |
GPIO0 |
PWM1_PIN |
IO1 |
GPIO1 |
TXD, UART_TX_PIN |
IO2 |
GPIO2 |
LED, PWM0_PIN |
IO3 |
GPIO3 |
RXD, UART_RX_PIN |
IO4 |
GPIO4 |
PWM2_PIN |
IO5 |
GPIO5 |
SPI0_CS0_PIN |
IO9 |
GPIO9 |
SD2, UART1_TX_PIN |
IO10 |
GPIO10 |
SD3, UART1_RX_PIN |
IO16 |
GPIO16 |
|
IO17 |
GPIO17 |
|
IO18 |
GPIO18 |
SPI0_SCK_PIN |
IO19 |
GPIO19 |
SPI0_SDI_PIN |
IO21 |
GPIO21 |
SDA_PIN |
IO22 |
GPIO22 |
SCL_PIN |
IO23 |
GPIO23 |
SPI0_SDO_PIN |
IO25 |
GPIO25 |
|
IO26 |
GPIO26 |
|
IO27 |
GPIO27 |
|
IO32 |
GPIO32 |
|
IO33 |
GPIO33 |
|
IO34 |
GPIO34 |
ADC0 |
IO35 |
GPIO35 |
ADC1 |
IO36 |
GPIO36 |
SVP, ADC2 |
IO39 |
GPIO39 |
SVN, ADC3 |
SD0 |
GPIO7 |
|
SD1 |
GPIO8 |
|
TCK |
GPIO13 |
|
TD0 |
GPIO15 |
|
TDI |
GPIO12 |
|
TMS |
GPIO14 |
Machine Package Docs
Documentation for the machine package for the ESP32 Core board v2
Flashing
CLI Flashing on Linux
You need to install the esptool flashing tool:
https://github.com/espressif/esptool#easy-installation
Now you should be able to flash your board as follows:
-
Plug your ESP32 board into your computer’s USB port.
-
Build and flash your TinyGo code using the
tinygo flashcommand. This command flashes the ESP32 with the blinky1 example:tinygo flash -target=esp32-coreboard-v2 -port=/dev/ttyUSB0 examples/blinky1 -
The ESP32 board should restart and then begin running your program.
CLI Flashing on macOS
You need to install the esptool flashing tool:
https://github.com/espressif/esptool#easy-installation
Now you should be able to flash your board as follows:
-
Plug your ESP32 board into your computer’s USB port.
-
Build and flash your TinyGo code using the
tinygo flashcommand. This command flashes the ESP32 with the blinky1 example:tinygo flash -target=esp32-coreboard-v2 examples/blinky1 -
The ESP32 board should restart and then begin running your program.
CLI Flashing on Windows
You need to install the esptool flashing tool:
https://github.com/espressif/esptool#easy-installation
Now you should be able to flash your board as follows:
-
Plug your ESP32 board into your computer’s USB port.
-
Build and flash your TinyGo code using the
tinygo flashcommand. This command flashes the ESP32 with the blinky1 example:tinygo flash -target=esp32-coreboard-v2 examples/blinky1 -
The ESP32 board should restart and then begin running your program.
Troubleshooting
Goes here
Notes
Goes here