Product Features:
1. Excellent performance and easy operation
2. MCU nRF52840 (Bluetooth), LoRa chip SX1262
3. Low power consumption, deep sleep 11μA
4. Powerful display (optional), on-board 1.14-inch TFT-LCD display
5. 135 (H) RGBx240 (V) can display 262K colors
6. rich interface (2 * 1.25mm LiPo connector, 2 * 1.25mm solar panel connector)
7. 8 * 1.25mm GNSS module connector) greatly increases the board's expandability
Product Description:
Mesh Node T114 is a low-power development board based on nRF52840 and SX1262, supports LoRa and Bluetooth 5.0. integrates various power interfaces (5V USB, Li-Ion battery and solar panel) optional 1.14-inch TFT display and GPS module as an accessory, with powerful remote communication capabilities, scalability and low-power design.
Use the Heltec nRF52 development environment and library. You can use it for LoRa/LoRaWAN development work, or you can use it to run some open source projects such as Meshtastic.
Product Parameters:
Microcontroller: nRF52840
LoRa node chip: sx1262
Frequency:
863-928mhz*
Maximum TX power: 21±1dBm
Maximum receive sensitivity: -135dBm@SF12 BW=125KHz
Bluetooth: Bluetooth LE: Bluetooth 5, Bluetooth mesh
Hardware resources: USB 2.0, 4*SPI, 2*TWI, 2*UART, 4*PWM, QPSI, 12S, PDM, QDEC and so on.
Storage: 1M ROM
256KB SRAM
Interface: Type-C USB
2*1.25 Li-ion battery connector
2*1.25 solar panel connector
LoRa ANT (IPEX1.0)
8*1.25 GPS module connector
2*13*2.54 plug pins
Battery: 3~4.2V battery power supply and charging. (Product does not come with battery)
Operating Temperature: -20 ~ 70 ℃
Size: 50.80*22.86mm
Electrical Characteristics:
Deep Sleep: ~11uA
Tracker mode sleep: ~22uA
GPS off, TFT off: ~9mA
GPS off, TFT on: ~20mA
GPS on, TFT on: ~51mA
Display: On-board 1.14-inch TFT-LCD display
GPS module description:
L76K is a GNSS module that supports multi-satellite systems (GPS, BDS, GLONASS, QZSS), joint multi-system positioning and single-system independent positioning, AGNSS function, built-in low-noise amplifiers and acoustic surface filters, and provides users with a fast, accurate, high-performance positioning experience.
The multi-satellite system makes the number of visible and available satellites increase dramatically compared to a single GPS system, which improves positioning accuracy and enables stable and highly accurate positioning even in complex urban environments. Supports AGNSS function, which can greatly reduce the time of first-time positioning. Built-in low noise amplifier can realize high sensitivity, high accuracy positioning and fast signal capture and tracking, which can ensure the positioning performance even under weak signal conditions. Built-in acoustic surface filter, can greatly enhance the module's anti-interference ability. Internal integrated active antenna detection circuit and protection circuit, can protect the module and active antenna from damage.
Product list:
1X development board
1X GPS module
2X Pin
2X terminal cable