【ART-Pi】Beginner expansion board +584242A

Updated March 29:

Some friends in the group asked me if the LED light seems a bit difficult to solder when soldering this equipment. Is there any good solution?

This question is a bit embarrassing. You may need to search for this yourself. I am currently using a KU small cutter head. I tin-plate the two LED points on the board, and then use tweezers to place the LED on the two small solder joints. Just click the tip of the knife and that's it. Friends who don't know how to do it can also weld one point first, and then weld another point after it is straightened. There is no good way, just practice more. It is still necessary to have an adjustable T12 soldering station. As for flux, it is recommended to use Kailishun.

Update on March 8th Goddess’ Day:

Yesterday, the board was completely welded. There were no problems in the actual test. The hardware part has been completed perfectly. The OLED part can use 0.96 or 1.3 size screens. IIC wiring is inserted directly in the forward direction, and SPI wiring is inserted in the reverse direction.

Updated on January 27th:

1. Re-edit the silk screen to a clear version:) The clear version of the silk screen was copied from the homework. The original silk screen was imported into Lichuang EDA and I don’t know why it was blurred~;

2. Correct the 3.3V and 5V power supplies, and thicken the wire diameter to 5mm;

The Chinese New Year is coming soon. Can I receive the ART-Pi before the new year? I’m afraid I won’t be able to write code these days during the Chinese New Year~~~~

Updated on January 20th:

1. 8266 has been deleted as required,

2. Added ink screen driver interface, wireless 433MHz wireless interface and touch buttons.

3. The wiring layout has been appropriately optimized.

I haven't gotten this board yet, so there may be differences between the concept and reality. It is expected that the V2 and V3 versions of the board will need to be revised.

ART-Pi is a DIY open source hardware with extended functions designed by the RT-Thread team for embedded software engineers and open source makers.

The hardware design is as follows:

The function is quite powerful!

The powerful MCU and rich expansion ventriloquism surpass other PiPai :)

Although ART-Pi is powerful, for beginners, they may not know how to use it once they get it. Then I designed a beginner expansion board:

The contents of the expansion board are as follows:

1. Add 3-way buttons. A board with not enough buttons is not perfect.

2. Running water lamp function: For friends who play with microcontrollers, the first step is to light up the lamp and turn on the running water lamp. How could we not have this classic feature!

3. Colorful lights: Thanks to the powerful PWM IO port of ART-Pi's STM32, colorful small lights can be obtained by applying different voltages to the RGB lights. This is a function that the 51 microcontroller did not have in the early days.

4. Buzzer function: After lighting up, the buzzer can sound by controlling the timing of the IO port.

5.DHT11/DS18B20 interface: Learn single bus communication, insert DHT11 or DS18B20, and let ART-Pi read the temperature and humidity.

6. After learning IIC, learn how to use OLED screen. Use the classic SH1106 main control OLED screen to display temperature and humidity.

7. Learn SPI communication, click on the screen of the SPI interface, and let it display the same content as the IIC screen.

8. Use ESP-01S for network configuration and let ESP-01S transmit network weather or clock information to ART-Pi and display it on the relevant display.

This expansion board takes into account the possibility of insufficient power supply of ART-Pi. If a high-current device is used, a Type-C external power supply can be used for power supply. Just adjust the 5V and 3.3V jumpers .

Because I didn’t get the physical board, I can only design the beginner expansion board at the moment. After you learn ART-Pi, please look forward to the ART-Pi intermediate expansion board and the ART-Pi overlord expansion board!