I have a citizen science device with two sensors that shall TX to Adafruit IO, ThingSpeak or similar services. I saw that Adafruit's BLE app for Android and iOS can TX a single feed (UART) but I need two.
Does anyone know of a smartphone app that can forward more than a single feed? The only alternative would be to use Fona or similar, but that makes the device too costly for a large group of citizen scientists.
Thanks!