E32-900T20S EBYTE OEM/ODM Factory wholesale high quality Low energy consumption Transparent transmission LoRa module
[Chip solution]：LoRa solution
[Frequency]：862～930MHz
[Transmit power]：20dBm
[Communication distance]：5.5km
[Size]：26*16 mm
[Product weight]：2.2±0.1g
[Introduction]：E32-900T20S is a wireless serial port module (TTL level) based on Semtech's LoRa solution, with transparent transmission mode, working in the 862~930MHz frequency band, and using LoRa spread spectrum technology. At present, it has been stably mass-produced and has been widely used in the three-meter industry, Internet of Things transformation, smart home and other fields.
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| No. Pin | Pin | Direction | Remarks |
| 1 | NC | - | Empty feet |
| 2 | GND | - | Module ground wire |
| 3 | NC | - | Empty feet |
| 4 | NC | - | Empty feet |
| 5 | NC | - | Empty feet |
| 6 | NC | - | Empty feet |
| 7 | NC | - | Empty feet |
| 8 | GND | - | Module ground wire |
| 11 | GND | - | Module ground wire |
| 12 | ANT | - | Antenna |
| 13 | GND | - | Module ground wire |
| 14 | GND | - | Module ground wire |
| 15 | GND | - | Module ground wire |
| 16 | GND | - | Module ground wire |
| 19 | GND | - | Module ground wire |
| 20 | M0 | Input (very weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used) |
| 21 | M1 | Input (very weak pull-up) | Cooperate with M0 to determine the 4 working modes of the module (cannot be left floating, can be grounded if not used) |
| 22 | RXD | Input | TTL serial port input, connected to the external TXD output pin; |
| 23 | TXD | output | TTL serial port output, connected to the external RXD input pin; |
| 24 | AUX | output | Used to indicate the working status of the module; the user wakes up the external MCU and outputs low level during power-on self-test initialization; (can be left floating) |
| 25 | VCC | - | Module power supply positive reference, voltage range: 2.3~5.5V DC |
| 26 | GND | - | Module ground wire |