Introduction
The SIM7028 NB-IoT HAT is designed for applications that need low delay, low power, and low throughput, also suitable for IoT applications such as meters, remote control, asset tracking, remote monitoring, remote healthcare, bicycle-sharing, and so on.

Features
Compatible with Raspberry Pi Zero/Zero 2/2B/3B/3B+/4B, and Jetson Nano, etc.
Global band Support: supports communication protocols including TCP, UDP, LWM2M, COAP, DTLS, DNS, NTP, PING, HTTP(S), MQTT(S), TLS/SSL, etc.
Onboard Type-C interface for software debugging
Onboard UART control pins, for connecting with host boards like Arduino/STM32
1x LED indicators, easy to monitor the working status
Onboard USB to UART chip, the UART communication pin can be configured via jumper
Onboard nano SIM card slot, compatible with NB-IoT specific card
Baudrate: 2400bps ~ 460900bps (115200bps by default)
Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands)
Supports SIM application toolkit: SAT Class 3, GSM 11.11, USAT

Comes with Online Development Resources and Manual (examples for Raspberry Pi/Jetson Nano/Arduino/ESP32): bit.ly/3Fz60tU

Communication Parameters
Support Bands:
--B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B66/B70/B85
Transmission Power:
-- Class 3 (0.25W@LTE)
Data Rate:
--UL: ≤159Kbps
--DL: ≤127Kbps

Other Parameters

Power supply: 2.2V~4.3V
Logic level: 5V / 3.3V (3.3V by default)
Standby mode current: 0.8uA
Operation temperature: -40°C ~ 85°C
Storage temperature: -45°C ~ 90°C
Dimensions: 30.2mm x 65mm

Package Content
SIM7028 NB-IoT HAT x1
GSM Antenna x1
USB Type-A to Type-C cable x1
2×20PIN female header x1
Standoffs pack x1