Heltec T114 (version 2.0)
The T114 is a lower power consumption radio compared with the V4, and this version is supplied without a display, GPS module or case It is ideal for a repeater etc.
The T114 supports 5v USB power, or 3.7v lithium battery and it has a solar panel input ( max 6v ) to charge the battery. The nRF52840 MCU offers lower power drain for longer battery life
The one T114 module covers both the 868MHz and 915 MHz bands
Specifications
Parameters | Description |
MCU | nRF52840 |
LoRa
Node Chip | SX1262 |
Frequency | 470~510MHz; |
Max. TX
Power | 21±1dBm |
Max. Receiving sensitivity | -135dBm@SF12 BW=125KHz |
Bluetooth | Bluetooth LE: Bluetooth 5, Bluetooth mesh |
Hardware
Resource | USB
2.0, 4 * SPI, 2 * TWI, 2 * UART, 4 * PWM, QPSI, 12S, PDM, QDEC Etc. |
Memory | 1M ROM |
Interface | Type-C
USB |
Battery | 3~4.2V battery power supply and charge. |
Operating
Temperature | -20 ~
70 ℃ |
Dimensions | 50.80*22.86mm |
Electrical
characteristics | Deep
Sleep: ~11uA |
Display ( when fitted ) | onboard 1.14 inch TFT-LCD display |
Main Features
- MCU nRF52840 (Bluetooth), LoRa chipset SX1262.
- Powerful display function (optional), onboard 1.14 inch TFT-LCD display contains 135(H)RGB x240(V) dots and can display up to 262k colors.
- Low power consumption, 11 uA in deep sleep.
- Operation condition: -20 ~ 70℃, 90%RH(No condensing).
- Type-C USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures.
- Compatible with Arduino, we provide development frameworks and libraries.
- Various Interfaces: 1.25*2P LiPo connector, 1.25*2P Solar panel connector, 1.25*8P GNSS module connector, which greatly increase the extensibility of the board.