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More IO expansion ports: 3
0 stack built into the Seeed Studio XIAO nRF52840
Solenso SOL-H800
These options make Unit 4Relay integration straightforward for controller projects that need four separated relay outputs
1 x VAMeter
Waveshare R800C GSM/GPRS HAT For Raspberry Pi 1.9 inch More IO expansion ports: 3Prohibited by the module manufacturer SIMCOM, we're not allowed to ship this product, or to provide any tech support, to the following countries regions: Iran, North Korea, Cuba, Sudan, Syrian. R800C GSM GPRS HAT for Raspberry Pi Features at a glance The R800C GSM GPRS HAT is a handy, low power Raspberry Pi HAT which features multi communication functionalities: GSM, GPRS, and phone call, applicable to countries or regions with 2G network coverage, up
