[Peak-T2.0] 2.0-inch touch screen small terminal based on ESP32

#### Project link: [https://gitee.com/forairaaaaa/peak-t2](https://gitee.com/forairaaaaa/peak-t2) The PCB is a 4-layer board, and the circuit and layout are basically the same as those of Zhihui Your original Peak is no different. * The project file can be opened in the "Editor Open" in the upper right corner, you may need to log in * There is no BOM table yet, please forgive me #### Hardware configuration: | Master | ESP32-PICO-D4 | | --- | --- ---------- | | Screen | ST7789 IPS 2.0-inch LCD SPI interface resolution: 240x320 | | Input device | CST026 2.0-inch capacitive touch screen resolution: 240x320, Rotary encoder | | Output device | One User LED, buzzer | | Storage | TF card slot SPI interface | | IMU | MPU6050 I2C interface | | GPS | ATGM336H module UART interface | | Battery | Li-ion 3.7V 603450 1200mAh | | USB interface | Type-C socket, CP2102 automatic download circuit | #### Soldering recommendations: * In view of ESP32-PICO-D4 packaging issues, it is recommended to use a steel mesh with a heating platform or an air gun * It is recommended to use a soldering iron for the rotary encoder pad Reinforcement, it is easy to be unstable when welded by ordinary heating table (don’t ask how you know #### Note: * **You need to connect the battery when burning the program, otherwise there will be voltage problems and errors during burning** * * *When burning the program, you need to keep pressing the encoder to power the chip** * Since there are several components next to the battery holder, be careful when unplugging the battery plug, and do not pull down the small components next to it ( * Bottom layer of PCB The chip power enable resistor on the chip uses a 0603 package, which is indeed not as convenient as 0402 (can be connected directly with tin) * If the GPS module is not needed, you can not solder it, or replace it with your own small module. Pay attention to the related pin issues, details are in the schematic diagram There are instructions* In the same way, the MPU6050 and the touch screen can also be cut off. The two use the same I2C bus#### Device link reference: * Battery: [Braun Navigation Driving Recorder Lithium Battery Large Capacity Universal 3.7v Polymer Tire Pressure Bluetooth headset 5V-tmall.comTmall](%5Bhttps://detail.tmall.com/item.htm?id=579820162048&spm=a1z09.2.0.0.5eaf2e8dkwSGBJ&_u=b2bdtj0f1990%5D(https://detail.tmall.com /item.htm?id=579820162048&spm=a1z09.2.0.0.5eaf2e8dkwSGBJ&_u=b2bdtj0f1990)) Category: High temperature resistance 80 degrees -603450-1200 mA* Housing fixed copper pillar: [M2*4/5/6/8/9/ 10/11/12 Double-pass monitoring copper pillar knurled security copper pillar (10 pieces) - Taobao (taobao.com)](%5Bhttps://item.taobao.com/item.htm?spm=a1z09.2.0. 0.5eaf2e8dkwSGBJ&id=555117890802&_u=b2bdtj0fff40%5D(https://item.taobao.com/item.htm?spm=a1z09.2.0.0.5eaf2e8dkwSGBJ&id=555117890802&_u=b2bdtj0fff40 )) Category: Dual-pass M2*4 * GPS module: [ATGM336H GPS Beidou dual-mode module flight control with EEPROM replaces NEO-M8N-Taobao (taobao.com)](%5Bhttps://item.taobao.com/item.htm?spm=a1z09.2.0.0.5eaf2e8dkwSGBJ&id=595353912203&_u=b2bdtj0f9a41 %5D(https://item.taobao.com/item.htm?spm=a1z09.2.0.0.5eaf2e8dkwSGBJ&id=595353912203&_u=b2bdtj0f9a41)) * LCD screen: [2-inch lcd display 2.0-inch display high-definition ips display st7789 Driver spi/parallel port 240320-Taobao (taobao.com)](%5Bhttps://item.taobao.com/item.htm?spm=a1z09.2.0.0.5eaf2e8dkwSGBJ&id=653306169973&_u=b2bdtj0faa53%5D(https://item .taobao.com/item.htm?spm=a1z09.2.0.0.5eaf2e8dkwSGBJ&id=653306169973&_u=b2bdtj0faa53)) * Capacitive touch screen: [2-inch CTP capacitive touch screen 2.0-inch small size touch screen FT6236U FT6336G CST026-Taobao .com)] (%5Bhttps://item.taobao.com/item.htm?spm=a1z09.2.0.0.5eaf2e8dkwSGBJ&id=607113397517&_u=b2bdtj0f8e5c%5D(https://item.taobao.com/item.htm?spm=a1z09.2.0 .0.5eaf2e8dkwSGBJ&id=607113397517&_u=b2bdtj0f8e5c)) * CP2102 can be replaced by CH9102X