Description
Features:
1. SIM7028 NB-IoT HAT is a small size, low power consumption and powerful Raspberry Pi HAT with NB-IoT (narrowband Internet of Things) function, supports global frequency bands, supports TCP, UDP, LWM2M, COAP, DTLS, DNS, NTP, PING, HTTP(S), MQTT(S), TLS/SSL, etc.
2. Designed for applications requiring low latency, low power consumption, and low throughput. It is also suitable for instrumentation, remote control, asset tracking, remote monitoring, telemedicine, shared bicycles, etc.
3. Standard Raspberry Pi 40PIN GPIO expansion header, supports Raspberry Pi series boards and Jetson Nano, etc.
4. Support TCP, UDP, LWM2M, COAP, DTLS, DNS, NTP, PING, HTTP(S), MQTT(S), TLS/SSL, etc.
5. Onboard Type-C interface for software debugging
6. Onboard UART control pin for connecting to Arduino/STM32 and other motherboards
7. 1x LED indicator light to easily monitor working status
8. Onboard USB to UART chip, UART communication pins can be configured through jumpers
9. Onboard nano SIM card slot, compatible with NB-IoT dedicated card
10. Baud rate: 2400bps-460900bps (default 115200bps)
11. Control via AT commands (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT commands)
12. Support SIM application toolkit: SAT Class 3, GSM 11.11, USAT
13. Comes with online development resources and manuals (Raspberry Pi/Jetson Nano/Arduino/ESP32 examples)
Product parameters:
1. Frequency band: B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B66/B70/B85
2. Data rate:
Less than or equal to 159Kbps (uplink)
Less than or equal to 127Kbps (downstream)
3. Power supply: 5V
4. Logic level: 5V/3.3V (default 3.3V)
5. Total current (idle mode): 4mA
6. 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)
7. Product size: 65 x 23.2mm
8. Weight: 60g
Shipping
Shipping policy
We offer fast and reliable shipping for all our clothing items. Orders are processed within 2-3 business days and shipped via standard delivery, which typically takes 8-25 business days.
Express shipping options are also available at checkout for an additional fee, ensuring your fashion essentials arrive even sooner. For any questions regarding your order, please contact our customer service team for assistance.
Shipping from Chinese Warehouse: | ||
Airmail and register airmail | Area | time |
United States, Canada, Netherlands, Spain, Germany, France, Japan, Republic of Korea, United Kingdom | 7-15 business days | |
Australia ,New Zealand, Singapore |
7-15 business days | |
Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland | 7-20 business days | |
Brazil, Russia, Mexico | 15-35 business days | |
Other countries | 7-25 business days | |
EMS | All countries except those listed below | 6-8 business days |
Brazil and Russia | 10-25 business days | |
Expedited Shipping*(DHL) | 3-7business days to worldwide. | 3-7 business days |
Return & Refund
Refund policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at support@reluova.com. Please note that returns will need to be sent to the following address:
T8 BLOCK ROOM312,XINGHUA SMART ZOOM,DONG CHENG STREET,DONGGUAN,DONGGUAN,CHINA,523000,+86 137 9069 5247
If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at support@reluova.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
Provided the conditions in our refund policy have been met, refunds will be processed using the original form of payment. You can return an item purchased online by posting it to us. Please contact customer service for return address. Please note that delivery costs will be excluded from the refund unless goods are returned in accordance with your statutory rights (e.g. they are faulty or not as ordered).
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