[IC]:-
[Fréquence]:410~510MHz
[Pouvoir]:20dBm
[Distance]:2.5km
[Taille]:26*16mm
[Poids]:2.0±0.1g
[Introduction]:E49- 400T20S est un module sans fil ultra rentable introduit par Chengdu ebyte. Il existe quatre modes de fonctionnement. Chaque mode de transmission a ses propres caractéristiques et peut être utilisé dans divers scénarios d'application. Le e49 - 400t20s soutient parfaitement les applications industrielles et est rigoureusement testé en usine pour assurer sa fiabilité industrielle et la cohérence des lots.
| No. | Name | Direction | Function |
|---|---|---|---|
| 1 | GND | - | Module ground wire |
| 2 | GND | - | Module ground wire |
| 3 | GND | - | Module ground wire |
| 4 | GND | - | Module ground wire |
| 5 | M0 | Input (pull up whenit’s weak) | Cooperate with M1 to determine 4 operating modes of the module(can be liftedfloating, the module contains pull-up resistor) |
| 6 | M1 | Input (pull up whenit’s weak) | Cooperate with M0 to determine 4 operating modes of the module(can be liftedfloating, the module contains pull-up resistor) |
| 7 | RXD | Input | TTL serial input, connect to external TXD output pin; |
| 8 | TXD | Output | TTL serial input, connect to external RXD output pin; |
| 9 | AUX | Output | Used to indicate the working status of the module; the user wakes up the externalMCU and outputs a low level during the power-on self-test initialization |
| 10 | VCC | - | Module power supply positive reference, voltage range: 2.6V ~ 5.5V DC |
| 11 | GND | - | Module ground wire |
| 12 | NC | - | - |
| 13 | GND | - | Module ground wire |
| 14 | NC | - | - |
| 15 | NC | - | - |