Overview
The SIM7028 NB-IoT HAT is a small size, low-power, and powerful Raspberry Pi HAT with NB-IoT (Narrow-Band Internet of Things) function, supports global band and supports TCP, UDP, LWM2M, COAP, DTLS, DNS, NTP, PING, HTTP(S), MQTT(S), TLS/SSL, etc. It 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
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards and Jetson Nano, etc.
- Supports 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)
Specifications
| COMMUNICATION PARAMETERS |
| Band |
B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B66/B70/B85 |
| Data rate |
≤159Kbps(UL)
≤127Kbps(DL) |
| OPERATING PARAMETERS |
| Power supply |
5V |
| Logic level |
5V/3.3V (3.3V by default) |
| Overall current (idle mode) |
4mA |
| Single module current (VBAT=3.3V) |
Idle mode: 2.8mA |
| PSM mode: 0.8uA |
| DRX mode: 0.11mA@Idle(DRX=2.56s) |
| eDRX mode: 0.018mA@Idle(eDRX=163.84s; PTW=25.6s) |
Additional Information
| Device |
Hat |
| Type |
Sim7028 | Nb-IOT |
