NB-IoT HAT for Raspberry Pi

This is an NB-IoT (Nar­row­Band-Inter­net of Things) HAT for Rasp­ber­ry Pi, con­trolled via ser­i­al AT com­mands, sup­ports com­mu­ni­ca­tion pro­to­cols like LWM2M/COAP/MQTT, etc. Due to the advan­tages of low delay, low pow­er, low cost, and wide cov­er­age, it is the ide­al choice for IoT appli­ca­tions such as intel­li­gent instru­ments, asset track­ing, remote mon­i­tor­ing, and so on.FeaturesStan­dard Rasp­ber­ry Pi 40PIN GPIO exten­sion head­er, sup­ports Rasp­ber­ry Pi series boards, Jet­son NanoSup­ports com­mu­ni­ca­tion pro­to­cols such as LWM2M/COAP/MQTT/TCP/UDP/HTTP/HTTPS, etc.Onboard USB inter­face, for pow­er sup­ply OR debug­gingBreak­out UART con­trol pins, to con­nect with host boards like Arduino/STM32Onboard volt­age trans­la­tor, 3.3V by default, allows to be switched to 5V via onboard jumperSIM card slot, sup­ports NB-IoT spe­cif­ic card2x LED indi­ca­tors, easy to mon­i­tor the work­ing sta­tusBau­drate: 300bps~921600bps (115200bps by default)Con­trol via AT com­mands (V.25TER, 3GPP TS 27.007, and SIMCOM AT Com­mands)Comes with devel­op­ment resources and man­u­al (exam­ples for Rasp­ber­ry Pi/Jetson Nano/Arduino/STM32/Python)Communications SpecificationsBandFDD-LTE B1/B3/B5/B8/B20/B28Data rateUplink≤62.5KbpsDownlink≤26.15KbpsSMSText mode and PDU mode (depends on the NB card)General SpecificationsPow­er sup­ply: 5VLog­ic lev­el: 5V/3.3V (3.3V by default)Over­all cur­rent (idle mode): ~18mASin­gle mod­ule cur­rent (VBAT=3.3V):Idle mode: 5.6mASleep mode: 0.4mAPSM mode: 5uAeDRX mode: 70uA (eDRX=655.36s)Dimen­sion: 30.5mm x 65.0mmDimensionDevelopment ResourcesWiki : www.waveshare.com/wiki/SIM7020E_NB-IoT_HAT