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Description
WVS SIM7028 IOT HAT FOR RASP PISim7028 Nb IOT Hat For Raspberry Pi, Supports Global Band Nb iot Communication, Small In Size And Low Power Consumption Sim7028 Nb IOT Hat 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
Sim7028 Nb-IOT Hat For Raspberry Pi, Supports Global Band Nb-iot Communication, Small In Size And Low Power Consumption
Sim7028 Nb-IOT Hat
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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1560 reviews
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Product Reviews
★★★★★ 5
Good material but bites back
Size: 20 sqft
Very good product for my rear trunk and backseat on my mustang. I would recommend some type of gloves due to the foil itself when placing down will cut up your hands and fingers. Overall good product for its price.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Great sound mat for the price!
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
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Reviewed in the United States on December 3, 2025
★★★★★ 5
Excellent sound deadening mats
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
Purchased these for a 2020 Lexus RX350 due to the hollow sound of the car doors when shutting. They sounded cheap. The mats are super sticky and I applied them when the doors were hot from sitting in the sun. They alubutyl sticks like crazy and the end result was perfect. Now I have solid sounding doors. Good quality product.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Awesome product 👌
Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
I love this stuff. I use it alot.
Sticks great
Easy to use
Molds super easy
Really helps with sound. Great product.
I wish I could get sponsored for this product on my projects..
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Good product at a good price
Style: 80 mil 36 sqft
This product works great and easy to install.
I do two or more vehicles a month.
I switch to this brand a year ago and would recommend to everyone of my customers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
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