[Chip solution]:DA16200
[Working frequency]:2.4GHz
[Transmit power]: 20dBm
[Communication distance]:300m
[Product weight]:3.4g (±0.1g)
[Introduction]:The E103-W12 series is an ultra-low power WiFi module developed by Chengdu Ebyte Electronics Co., Ltd. based on the Dialog DA16200 SoC chip that supports IEEE 802.11b/g/n. It has a built-in high-performance ARM Cortex-M4 processor and works at 2.4~2.4835 GHz frequency band, the maximum wireless transmission power can reach 20dBm. The module supports IEEE802.11 b/g/n standard. The module supports AP and STA modes, supports multiple network transmission protocols such as TCP/UDP/HTTP/MQTT, and can maintain WIFI connection in low power consumption mode.
| Pin sequ ence numb er | Pin name | Pin type | Pin Usage |
| 1 | GND | — | Ground, connected to the power reference ground |
| 2 | NC | — | — |
| 3 | WAKE_UP | — | sleep2/sleep3 external wake up feet |
| 4 | PWR—KEY | — | The power supply enable pin, high level enabled, low level shutdown is in sleepl mode |
| 5 | VDD—DIOl | I/O | GPIOA1-GPIOA11 power supply 1. 8v-3. 3v, GPIO output voltage is the same |
| 6 | GPIO3 | I/O | General-purpose 10 port, ADC channels can be reused |
| 7 | GPIOAO | I/O | General-purpose 10 port, ADC channelO can be reused |
| 8 | GPIOA2 | I/O | General-purpose 10 port, ADC channel2 can be reused |
| 9 | GPIOA1 | I/O | General-purpose 10 port, ADC channel1 can be reused |
| 10 | GPIOA5 | I/O | AT command serial port UART_RX |
| 11 | GPIO7 | I/O | General-purpose I/O port |
| 12 | GPI0A10 | I/O | Universal I/O port, multiplexable PWM output |
| 13 | GPI0A11 | I/O | General-purpose I/O port, receive data notification pin in sleep3 mode |
| 14 | GPIOA6 | I/O | General-purpose I/O port |
| 15 | GPIOA4 | I/O | AT command serial port UART1_TX |
| 16 | GPI08 | I/O | General-purpose I/O port |
| 17 | GPIOA9 | I/O | General-purpose I/O port |
| 18 | RTC_WAKE_UP2 | I/O | Pull-down grounding |
| 19 | GND | I/O | Ground, connected to the power reference ground |
| 20 | VDC | I/O | Module powered, 3. 3V |
| 21 | VDD_DIO2 | I/O | GPIOC6-GPIOC8 power supply 1. 8v~3. 3v, GPIO output voltage is the same |
| 22 | UART0_TXD | I/O | Debugging the serial port TX, users don't need to care |
| 23 | UART0_RXD | I/O | Debugging the serial port RX, users don't have to care |
| 24 | GPI0C6 | I/O | General-purpose I/O port |
| 25 | GPI0C7 | I/O | General-purpose I/O port |
| 26 | GPI0C8 | I/O | General-purpose I/O port |
| 27 | JTAG_TCLK | — | JTAG emulation pins, users don't need to care |
| 28 | JTAG_TMS | — | JTAG emulation pins, users don't need to care |