Sixfab Launches Arduino and Raspberry Pi NB-IoT Shields with Four Sensors

SixFab previously introduced a 3G/4G base shield for the Raspberry Pi boards that would take Quectel based mini PCIe card in order to add cellular connectivity to the popular development boards. The company is now back with NB-IoT shields that should better suited to IoT projects with lower hardware and data costs, and support either 40-pin Raspberry Pi boards or Arduino. SixFab Raspberry Pi NB-IoT Shield Specifications & features: Module – Quectel BC95-B20 NB-IoT Module supporting 800MHz frequency (suitable for the European market) Micro SIM card socket, PCB Antenna and u.FL socket for external antenna I/O expansions 4x Channel 12-bit ADC via ADS1015 Relay with optocoupler protection (24V DC, 120-220V AC Switching) 3-pin 1-Wire interface for DS18B20, DHT21, etc… 4-pin I2C interface 3.3V reference voltage Sensors MMA8452Q 3-axis accelerometer HDC1080 temperature sensor (-40 to +125 °C) HDC1080 humidity sensor (0 to 100%) ALS-PT19 ambient light sensor Misc – User button and LED Optocoupler (3 – 12 VDC switching) Compatible with …

SixFab Launches Raspberry Pi 3G-4G/LTE Base Shield V2 for $31.20

Development boards with 4G LTE are still quite expensive, at least compared to 2G or 3G solutions, with for example Wio LTE GPS Tracker board selling for around $100. So when I saw Sixfab introducing a 3G/4G shield for Raspberry Pi 3 for just $31.20 (pre-orders), I first thought it was an incredible deal. But I soon realized I missed the “base” word in the name, as the shield just includes the SIM card slot, and mPCIe connector where you can connect Quectel’s UC20-G Mini PCle 3G module or EC25 Mini PCle 4G/LTE Module which adds respectively $59 or $89 to the price. That’s still an interesting HAT board, so let’s have a look. Raspberry Pi 3G-4G/LTE Base Shield V2 specifications: Clip-in Mini PCIe socket for: 4G/LTE Module (Quectel EC25) up to 150Mbps downlink and 50Mbps uplink data rates, GPS/GLONASS 3G Module (Quectel UC20) up to 14.4Mbps downlink and 5.76Mbps uplink, GPS/GLONASS Micro SIM card socket USB – 1x micro …