This firmware is for use on the SI4732 (ESP32-S3) Mini/Pocket Receiver
Based on the following sources:
- Ralph Xavier: https://github.com/ralphxavier/SI4735
- PU2CLR, Ricardo: https://github.com/pu2clr/SI4735
- Goshante: https://github.com/goshante/ats20_ats_ex
- G8PTN, Dave: https://github.com/G8PTN/ATS_MINI
- Install Arduino CLI.
- Go to the repository root folder
- Compile and flash the firmware
arduino-cli compile --board-options CDCOnBoot=cdc,FlashSize=8M,PSRAM=disabled,CPUFreq=80,USBMode=hwcdc,FlashMode=qio,PartitionScheme=default_8MB,DebugLevel=none --clean -e -p COM_PORT -u ats-miniThe pinout table is shown below.
The relevant colums are ESP32-S3-WROOM-1 "Pin Name" and "ATS-Mini Sketch Pin Definitions"
| ESP32-S3-WROOM-1 Pin # |
ESP32-S3-WROOM-1 Pin Name |
ATS-MINI Sketch Pin Definitions |
TFT_eSPI Pin Definition |
xtronic.org Schematic |
Comments Info |
|---|---|---|---|---|---|
| 1 | GND | GND | |||
| 2 | 3V3 | VCC_33 | |||
| 3 | EN | EN | RST Button | ||
| 4 | IO4 | VBAT_MON | BAT_ADC | Battery monitor | |
| 5 | IO5 | TFT_RST | LCD_RES | ||
| 6 | IO6 | TFT_CS | LCD_CS | ||
| 7 | IO7 | TFT_DC | LCD_DC | ||
| 8 | IO15 | PIN_POWER_ON | RADIO_EN | 1= Radio LDO Enable | |
| 9 | IO16 | RESET_PIN | RST | SI4732 Reset | |
| 10 | IO17 | ESP32_I2C_SCL | I2C_SCL | SI4732 Clock | |
| 11 | IO18 | ESP32_I2C_SDA | I2C_SDA | SI4732 Data | |
| 12 | IO8 | TFT_WR | LCD_WR | ||
| 13 | IO19 | USB_DM | USB_D- (CDC Port) | ||
| 14 | IO20 | USB_DP | USB_D+ (CDC Port) | ||
| 15 | IO3 | AUDIO_MUTE | MUTE | 1 = Mute L/R audio | |
| 16 | IO46 | TFT_D5 | LCD_DS | ||
| 17 | IO9 | TFT_RD | LCD_RD | ||
| 18 | IO10 | PIN_AMP_EN | AMP_EN | 1 = Audio Amp Enable | |
| 19 | IO11 | NC | Spare | ||
| 20 | IO12 | NC | Spare | ||
| 21 | IO13 | NC | Spare | ||
| 22 | IO14 | NC | Spare | ||
| 23 | IO21 | ENCODER_PUSH_BUTTON | SW | Rotary encoder SW signal | |
| 24 | IO47 | TFT_D6 | LCD_D6 | ||
| 25 | IO48 | TFT_D7 | LCD_D7 | ||
| 26 | IO45 | TFT_D4 | LCD_D4 | ||
| 27 | IO0 | GPIO0 | BOOT button | ||
| 28 | IO35 | NC | Used for OSPI PSRAM | ||
| 29 | IO36 | NC | Used for OSPI PSRAM | ||
| 30 | IO37 | NC | Used for OSPI PSRAM | ||
| 31 | IO38 | PIN_LCD_BL | TFT_BL | LCD_BL | Backlight control |
| 32 | IO39 | TFT_D0 | LCD_D0 | ||
| 33 | IO40 | TFT_D1 | LCD_D1 | ||
| 34 | IO41 | TFT_D2 | LCD_D2 | ||
| 35 | IO42 | TFT_D3 | LCD_D2 | ||
| 36 | RXD0 | NC | GPIO44 | ||
| 37 | TXD0 | NC | GPIO43 | ||
| 38 | IO2 | ENCODER_PIN_A | A | Rotary encoder A signal | |
| 39 | IO1 | ENCODER_PIN_B | B | Rotary encoder B signal | |
| 40 | GND | GND | |||
| 41 | EPAD | GND |
