Main control chip: TG7100C
Specifications: 1T1R
Speed: 72M
Interface: UART, PWM, ADC, DAC, I2C, SPI, GPIO, SDIO
Size: 24*16*1mm (L*W*H)
Working voltage: 3.3V
Wireless standard: 802.11b/g/n+BLE5.0
Band width: 2.4G
Working temperature: -45°C to +85°C
Features
■ Support Free RTOS operating system
■ Support STASTA, Soft AP and Sniffer mode
■ Comply with CE/FCC/SRRC electromagnetic compatibility regulations
■ Follow RoHs/REACH environmental protection directives
■ Golden finger package, easy to SMT process
■ Applicable to: smart lighting, smart switches, smart sockets, smart home appliances
Module size chart

Module pin

| NO | Name | Description |
| 1 | CHIP_EN | Chip enable pin (active high) |
| 2 | GPIO5 | ADC |
| 3 | GPIO2 | EN |
| 4 | GPIO11 | GPIO11 |
| 5 | GPIO12 | GPIO12 |
| 6 | GPIO14 | GPIO14 |
| 7 | GPIO17 | GPIO17 |
| 8 | VCC | Power supply. 3.3V is required |
| 9 | GND | Ground connections |
| 10 | GPIO0 | GPIO0 |
| 11 | GPIO8 | GPIO8 (Boot option) |
| 12 | GPIO1 | GPIO1 |
| 13 | GPIO3 | RXD(5V)通信串口 |
| 14 | GPIO4 | TXD(5V)通信串口 |
| 15 | GPIO16 | RXD(3.3V)烧录串口 |
| 16 | GPIO7 | TXD(3.3V)烧录串口 |