[Introduction]:E290-400T30S is a new generation of wireless module, a UART wireless serial port module based on the Panqiwei PAN3060 RF chip, with multiple transmission modes, working in the (410.125~493.125MHz) frequency band, using spread spectrum technology ChirpIoT™, TTL level output. The wireless module adopts a new generation of ChirpIoT™ spread spectrum technology, supports half-duplex wireless communication, has high anti-interference and high sensitivity; supports air wake-up, wireless configuration, automatic relay, communication key, AT command, IAP upgrade and other functions, supports sub-packet length setting, and can provide customized development services.
Pin number | Pin name | Pin Direction | Pin usage |
1 | GND | Input | Module ground wire |
2 | VCC | Input | Module power supply positive reference, voltage range: 3.3~5.5V DC |
3 | TO | Output | Used to indicate the working status of the module; the user wakes up the external MCU, and outputs a low level during power-on self-test initialization; (can be suspended) |
4 | TXD | Output | TTL serial port output, connected to the external RXD input pin; |
5 | RXD | Input | TTL serial port input, connected to the external TXD output pin; |
6 | M1 | Input (extremely weak pull-up) | Cooperate with M0 to determine the 4 working modes of the module (not suspended, if not used, grounded) |
7 | M0 | Input (extremely weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module (not suspended, if not used, grounded) |
11 | On | Output | Antenna interface (high frequency signal output, 50 ohm characteristic impedance) |
12 | GND | - | Fixed |
13 | GND | - | Fixed |
14 | GND | - | Fixed |
18 | NC | - | SWCLK Clock pin when the program is loaded (dangled, no need for user connection) |
19 | NC | - | Data pins when SWDIO program loads (dangled, no need for users to connect) |
20 | NC | - | GPIO/RS485_en |
twenty one | NC | - | MCU_VDD The power pin of the program download (dangling, user does not need to connect) |
twenty two | RESET | Input | Module reset foot |
twenty three | GND | Input | Fixed |
twenty four | NC | - | Empty feet |