it was my first ABP test for this 32U4/RFM95 china adafruit feather clone, just to see if I didn’t make ‘key’ mistakes
code example is here and here
not much free memory left so what we need is an 'stripped lmic version to gain some memory.
the goal is to send temp and humidity data and we need deepsleep.
regarding the battery voltage (drop) , I didn’t even check that code part/pin … was supprised it measured anything
one thing I noticed immediate, on first boot with a piece of wire antenna on my desk … the packet was seen by 3 gateways, even the one 13 km away … I expected to see only my GW in the console.
that makes me wonder… is the output of the RFM95 that much better than the RN2483 TTN uno clone I build ?
have to check and learn a lot more.
If I can’t free some more memory or lower the sleepcurrent I forsee that this module is usefull as a on/off detector, like a PIR alarm when you leave your house… triggered it can send a message to your phone (first a lorawan packet) and the battery (1800 mA) I use last max one month
decided not to use this module in a battery powered node… so I have a new use case for it
the coffee spy node - an universal LoRaWAN AC current detector, so I can easily check if my old mother had her morning coffee or switched the television on or off. it just send one on/off byte to the application and is AC powered.
hey borroz. do you use the hilink directly or does it need some stabilizer on the output? should some form of fuse be included since it is on 220v? i have some hilinks lying around but never dared using them on any nodes.
Also a 2 color LED, red on power on (plugged in) and green flashing when it can reach a gateway, green continue when the coffee machine/tv is on and a notification is transmitted.
These HiLinks are very good (tested before) , but I’ve never used them on a node, I’m more concerned about possible noise interference with that hall sensor, test before mounting everything
