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TTGO_TWatch_Library/docs/watch_2019.md
2021-01-25 09:47:13 +08:00

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# 1.Pinout table
| Peripherals | 2019/TOUCH | 2019/NO TOUCH | T BLOCK |
| :---------------: | :----------: | :-----------: | :----------: |
| Core | ESP32-DOWDQ6 | ESP32-DOWDQ6 | ESP32-DOWDQ6 |
| Flash | 16MB | 16MB | 16MB |
| SPRAM | 8MB | 8MB | 8MB |
| TOUCH Driver | FT6236 | N/A | N/A |
| TFT Driver | ST7789 | ST7789 | N/A |
| TFT Size | 240x240/1.54 | 240x240/1.54 | N/A |
| TFT RST | N/A | N/A | N/A |
| TFT MISO | N/A | N/A | N/A |
| TFT MOSI | 19 | 19 | N/A |
| TFT SCLK | 18 | 18 | N/A |
| TFT DC | 27 | 27 | N/A |
| TFT CS | 5 | 5 | N/A |
| TFT BackLight | 12 | 12 | N/A |
| SENSOR SDA[3] | 21 | 21 | 21 |
| SENSOR SCL[3] | 22 | 22 | 22 |
| FT6236 SDA | 23 | N/A | N/A |
| FT6236 SCL | 32 | N/A | N/A |
| MOTOR | N/A[1] | N/A[1] | N/A[1] |
| BMA423 Interrupt | 39 | N/A | N/A |
| FT6236 Interrupt | 38 | 38[2] | N/A |
| PCF8563 Interrupt | 37 | 37 | 37 |
| BUTTON | 36 | 36 | 36 |
| AXP202 Interrupt | 35 | 35 | 35 |
| I2S BCK | N/A[1] | N/A[1] | N/A[1] |
| I2S WS | N/A[1] | N/A[1] | N/A[1] |
| I2S DOUT | N/A[1] | N/A[1] | N/A[1] |
| IR Send | N/A | N/A | N/A |
| SD MISO | N/A | N/A | N/A |
| SD MOSI | N/A | N/A | N/A |
| SD SCLK | N/A | N/A | N/A |
| SD CS | N/A | N/A | N/A |
[1]. According to different base plates
[2]. Capacitive touch button
[3]. SENSOR SDA and SCL share PCF8563, BMA423, AXP202,T-Block without BMA423, use MPU6050
## 2. AXP202 Power domain
| channel | Explanation |
| :-----: | :--------------------: |
| DC2 | NO USE |
| DC3 | ESP32(Can't close) |
| LDO1 | Can't control |
| LDO2 | Backlight |
| LDO3 | Backplane power supply |
| LDO4 | S76/78G Backplane only |
## 3. Bottom plate Pinout
**Standard**
| ESP32 Core | GPIO33 | GPIO25 | GPIO21 | GPIO22 |
| :--------: | :----: | :-----: | :----: | :----: |
| Standard | Motor | Speaker | SDA | SCL |
* Onboard SD card slot
* The motor/speaker power domain is LDO3
**SIM800L**
| ESP32 Core | GPIO14 | GPIO15 | GPIO4 | GPIO33 | GPIO34 |
| :--------: | :----: | :----: | :--------: | :----: | :----: |
| SIM800L | RST | PWRKEY | BOOST_CTRL | TX | RX |
* No onboard SD card slot
* The modem power domain is LDO3
**SIM868**
| ESP32 Core | GPIO33 | GPIO34 |
| :--------: | :----: | :----: |
| SIM868 | TX | RX |
* Onboard SD card slot
* The gps power domain is LDO3
**MPR121**
| ESP32 Core | GPIO21 | GPIO22 |
| :--------: | :----: | :----: |
| MPR121 | SDA | SCL |
* Onboard SD card slot
* The sensor power domain is LDO3
**S7XG_Lora & GPS**
| ESP32 Core | GPIO33 | GPIO34 |
| :--------: | :----: | :----: |
| S7XG_Lora | TX | RX |
* Onboard SD card slot
* The S76/78G power domain is LDO3
* The gps power domain is LDO3
## 3.datasheet
- [Esp32](https://www.espressif.com/sites/default/files/documentation/esp32_technical_reference_manual_en.pdf)
- [AXP202](https://github.com/Xinyuan-LilyGO/LilyGo-HAL/tree/master/AXP202)
- [BMA423](https://github.com/Xinyuan-LilyGO/LilyGo-HAL/tree/master/BMA423)
- [ST7789](https://github.com/Xinyuan-LilyGO/LilyGo-HAL/blob/master/DISPLAY/ST7789V.pdf)
- [PCF8563](https://github.com/Xinyuan-LilyGO/LilyGo-HAL/tree/master/RTC)
- [FT6236](https://github.com/Xinyuan-LilyGO/LilyGo-HAL/blob/master/TOUCHSCREEN/FT6236-FT6336-FT6436L-FT6436_Datasheet.pdf)
- [MPU6050](https://github.com/Xinyuan-LilyGO/LilyGo-HAL/tree/master/MPU6050)
- [ACSIP_S7678G](https://github.com/Xinyuan-LilyGO/LilyGo-HAL/tree/master/ACSIP_S7678G)
- [NFC/PN532](https://github.com/Xinyuan-LilyGO/LilyGo-HAL/tree/master/NFC)
- [3D Shell](https://github.com/Xinyuan-LilyGO/LilyGo-TWatch-DataSheet/tree/master/3DSHELL)
## 4.other
- [Acsip S76/78 Library&Examples](https://github.com/lewisxhe/Acsip-S7xG-Library)