buldi/t-picoc3

Fajne

🌟LilyGO T-PicoC3🌟

Quick start:

Notice

In TYPE-C, you can determine whether the current connection is PICO or ESP32C3 through positive and negative access.

When connecting, the onboard LED lamp will be indicated according to the connected chip (due to cable problems, it is possible that the indicator light is opposite to the actual connected chip, or even two LED lights at the same time, please replace another cable when two led lights up at the same time), the main judgment is that the currently connected device is displayed in the serial port name.

RP2040 :

Arduino

1. Open up the Arduino IDE and go to File->Preferences.
2. Unofficial libraries are used in the Arduino examples.In the dialog that pops up, enter the following URL in the "Additional Boards Manager URLs" field:

https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

3. Go to Tools->Boards->Board Manager in the IDE
4. Type "pico" in the search box and select "Add":
5. Copy TFT_eSPI to the <C:\Users\Your User Name\Documents\Arduino\libraries> directory
6. Open Arduino IDE, find TFT_eSPI in the file and example, the T-Display factory test program is located at TFT_eSPI -> FactoryTest, you can also use other sample programs provided by TFT_eSPI
7. In the Arduino IDE tool options, select the development board Raspberry Pi Pico, Other keep the default
8. Hold down the BOOT button, click the reset button, and release the BOOT button after a delay of one second or after waiting for the computer to eject a new disk
9. Finally, click upload or drag the firmware to the new disk

---

MicroPython

1. install Thonny Python IDE
2. After the installation is complete, you need to click on the toolbar, click Run -> Select Interpreter, enter the following interface, select Raspberry Pi Pico, you need to configure Pico before configuring the following ports
3. Press the BOOT button, click RES, then go back to Thonny Python IDE and change the port to the serial port where Pico is located. If you don't find it, click Install or update firmware.
4. Enter or save as a script to run

from machine import Pin, Timer
led = Pin(25,Pin.OUT)
tim = Timer()
def tick(timer):
    global led
    led.toggle()
tim.init(freq=2.5, mode=Timer.PERIODIC, callback=tick)

5. If you need to save to the chip, you need to click File->Save As->rp2040.

6. For more usage methods, please refer to the Micro python documentation.

Platform IO

Option 1: using the standard Arduino-mbed core that's built in to PIO. The packages and toolchain are all installed by the PIO GUI when you create a new project. Use these options in setup:

Option 2: This makes use of the same 'earlephilhower arduino-pico core' that is available in Arduino IDE, however this core is not fully supported (yet) on PlatformIO and is waiting for this pull request: platformio/platform-raspberrypi#36

In the meantime here are the steps to create your project: https://github.com/earlephilhower/arduino-pico/blob/master/docs/platformio.rst

Here is my platformio.ini file:

[env:pico]
platform = https://github.com/maxgerhardt/platform-raspberrypi.git
board = pico
board_build.core = earlephilhower
framework = arduino
build_flags = 
	-I ../include
lib_deps = 
	khoih-prog/ESP_AT_Lib@^1.4.1

To connect to the T-PicoC3 via UART for Wifi I am using this excellent library (installed by PIO GUI): https://github.com/khoih-prog/ESP_AT_Lib Note that there is a workaround required to access Serial2 and TX-8, RX-9 on the T-Pico device. It's explained here: khoih-prog/ESP_AT_Lib#4

Here is the first few rows of the build terminal output showing the configuration and packages:

CONFIGURATION: https://docs.platformio.org/page/boards/raspberrypi/pico.html PLATFORM: Raspberry Pi RP2040 (1.7.0) > Raspberry Pi Pico HARDWARE: RP2040 133MHz, 264KB RAM, 2MB Flash DEBUG: Current (cmsis-dap) External (cmsis-dap, jlink, raspberrypi-swd) PACKAGES:

• framework-arduino-mbed @ 3.1.1
• tool-openocd-raspberrypi @ 2.1100.0 (11.0)
• tool-rp2040tools @ 1.0.2
• toolchain-gccarmnoneeabi @ 1.90201.191206 (9.2.1)

Thanks @jimemo

---

ESP32-C3

Arduino

1. Open up the Arduino IDE and go to File->Preferences.
2. In the dialog that pops up, enter the following URL in the "Additional Boards Manager URLs" field:

• Stable release link:

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

• Development release link:

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json

3. Go to Tools->Boards->Board Manager in the IDE
4. Type "ESP32C3 Dev" in the search box and select "Add":
5. Click any "file-> example-> all esp32 esamle" and upload the run

ESP32-C3 Upload method

• ESP32C3 mainly uses ESP32-AT firmware here. If you want to use it as a coprocessor, you can modify the firmware.
• Method 1: if the serial port is displayed with the word jatg when connecting to USB, you can upload it directly using USB. (please note that do not use USB pins to define other functions, otherwise it will be troublesome to upload next time).
• Method 2: (if there is no serial port when connecting ESP32C3 USB) disconnect USB, short connect ESP32C3-IO9 and GND, and then reconnect USB (note that ESP32C3 device is selected to connect USB).

Product	Product Link
T-PicoC3	Amazon(USA)

Pins	RP2040
TFT Driver	ST7789(240*135)
TFT_MISO	N/A
TFT_MOSI	3
TFT_SCLK	2
TFT_CS	5
TFT_DC	1
TFT_RST	0
TFT_BL	4
PWR_ON	22
BOTTON1	6
BOTTON2	7
RedLED	25