NB IoT platform

Based on:

• MCU: Microchip SAML11
• GSM, GPS: SIMCom SIM7070
• Power: 2V Solar panel or DC 5V, MPPT harvester, 1xLiFePO4 18650

Hardware features:

• Sensors IN:
  • 2xPulse, 3V3-48V tolerant, optocouple galvanic isolation. Supports NPN, PNP
  • 1xADC, 1V2-48V tolerant
  • 2x4 wires: USART, LIN client, I2C client/host, SPI client/host, RS485 (3V3), 3V3-5V tolerant, buffered
• Sensors power OUT: 3V3, 12V or self-powered
• Power: 1V5-2V5 Solar MPPT Harvester or DC 5V, LiFePO4/Li-ion charger, reverse polarity protection
• power consumption values plot

Software features:

• AWS integration
• MQTTs
• I2C BME280 temperature/humidity/pressure sensor support

Schematics:

Board:

Enclosure:

Gainta G113

BOM:

Interactive BOM