【RA】Soldering pen-soldering assistant

When we solder the patch, we are tired of squeezing the solder paste by hand. So I used a Renesas MCU plus an OLED screen and motor to make this soldering pen, so that my hands don’t need to be so tired when welding.
This work is downloaded using the serial port. When downloading, you need to set the P201 pin to GND and press the reset button. This MCU can use a crystal oscillator. Please note that the initialization commands for the 0.91-inch OLED screen are different from those for the 0.96-inch screen.

R7FA2E1A72DFL parameters:
* Wide operating voltage range of 1.6V - 5.5V;
* Enhanced capacitive touch sensing unit (CTSU);
* Independent SPI interface/I2C multi-master interface;
* 12-bit ADC, LPACMP, temperature sensor;
* 32 1-bit universal PWM timer, 16-bit universal PWM timer, low-power asynchronous universal timer;

engineering features:
1. Still using the mainstream interface Type-c.
2. Onboard one reset button and three user-defined buttons
3. A custom LED is onboard.
4. Power indicator light.
5. Serial port download


oled initialization command part:
uint8_t CMD_Data[]={
0xAE,
0x40,
0xB0,
0xC0,//0xc0 up and down inversion 0xc8 normal
0x81,
0xff,
0xa0,//0xa0 left and right inversion 0xa1 normal
0xa6,
0xa8,
0x1F ,
0xD3,
0x00,
0xD5,
0xf0,
0xD9,
0x22,
0xDA,
0x02,
0xDB,
0x49,
0x8D,
0x14,
0xAF,

}; //Initialization command



video link: https://www.bilibili.com/video/BV1yT4y1r71F? share_source=copy_web