Main control chip: TG7100C
Specifications: 1T1R
Speed: 72M
Interface: UART, PWM, ADC, DAC, I2C, SPI, GPIO, SDIOT
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: -20°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
■ Stamp hole package, easy to SMT process
■ Applicable to: smart lighting, smart switches, smart sockets, smart home appliances
Module size chart

Module pin

| No | Name | IO Type | Description |
| 1 | CHIP_EN | IO | Chip cnable pin (active high) |
| 2 | GPIO5 | IO | GPIO5 |
| 3 | GPIO2 | IO | GPIO2 |
| 4 | GPIO11 | IO | GPIO11 |
| 5 | GPIO12 | IO | GPIO12 |
| 6 | GPIO14 | IO | GPIO14 |
| 7 | GPIO17 | IO | GPIO17 |
| 8 | VCC | P | Power supply. 3.3V is required |
| 9 | GND | P | Ground connections |
| 10 | GPIO0 | IO | GPIO0 |
| 11 | GPIO8 | IO | GPIO8(Boot option). |
| 12 | GPIO1 | TO | GPIO1 |
| l3 | GPIO3 | IO | GPIO3 |
| 14 | GPIO4 | IO | GPIO4 |
| 15 | RXD | I | UART RX |
| 16 | TXD | O | UART TX |