[La fréquence]:850.125~930.125MHz
[Du pouvoir]:22dBm
[Distance]:5km
[Taille]:21*36mm
[Lester]:6.5±0.2g
[Poids du produit]:6.5±0.2g
[Introduction]:E22-900T22D est un module sans fil (UART) avec plusieurs modes de transmission, fonctionnant dans le 850.125MHz ~ 930.125MHz, (par défaut 868.125MHz). Il dispose de la technologie à spectre étalé LoRa, d'une sortie de niveau TTL, compatible avec la tension de port IO 3,3 V et 5 V.
Limit Parameters
| Main Parameters | Performance | Remarks | |
| Min. | Max | ||
| Power supply(V) | 0 | 5.5 | Voltage over 5.5V will cause permanent damage to module |
| Blocking power(dBm) | - | 10 | Chances of burn is slim when modules are used in short distance |
| Operating temperature(℃) | -40 | +85 | - |
Operating parameter
| Main Parameters | Performance | Remarks | ||
| Min. | Typ. | Max. | ||
| Operating voltage(V) | 2.3 | 5.0 | 5.5 | ≥5.0 V ensures output power |
| Communication level(V) | - | 3.3 | - | For 5V TTL, it may be at risk of burning down |
| Operating temperature(℃) | -40 | - | +85 | Industrial design |
| Operating frequency(MHz) | 850.125 | 868.125 | 930.125 | Support ISM band |
| TX Current(mA) | - | 110 | - | Instant power consumption |
| RX current(mA) | - | 11 | - | - |
| Sleep current(μA) | - | 2 | - | Software is shut down |
| Max Tx power(dBm) | 21.5 | 22.0 | 22.5 | - |
| Receiving sensitivity(dBm) | -146 | -147 | -148 | Air data rate 0.3kbps |
| Air data rate(bps) | 0.3k | 2.4k | 62.5k | To control via user’s program |
| Main parameter | Description | Remarks |
| Distance for reference | 5000m | Test condition:clear and open area, antenna gain: 5dBi,antenna height: 2.5m,air data rate: 2.4kbps |
| TX length | 240 Byte | Can be configured via command as 32/64/128/240 bytesper packet to transmit |
| Buffer | 1000 Byte | - |
| Modulation | LORA | - |
| Communication interface | UART | TTL level |
| Package | DIP | - |
| Connector | 1*7*2.54mm | - |
| Size | 21*36 mm | - |
| Antenna | SMA-K | 50 ohm impedance |