Put a temp sensor inside and log profile then you can alarm when your prawn or chicken sandwich inside has spoilt or when your bottle of beer too hot for consumption! 
1 Like
Of course, and the black solar panel will surely help generate some thermal profile. 
He can get a LoRa notification when his hot ham and cheese sandwich is ready.
1 Like
I did… how did you know my lorawan use case 
1 Like
Is module with: ESP8285 (ESP8266), 50 kB RAM, 1 MB Flash
I think I would prefer a TTGO Micro-32 - ESP32-Pico-D4 module instead:
Module with: ESP32 Pico, 2 cores, 520 kB RAM, 4 MB Flash
true more power in a little box.
but its something I want to try… receiving TTN MQTT over wifi in a little client… how… don’t know yet but we need small displays and wifi
almost forgot this 
… well the parts are coming in … ZzzzZZZzzzzz lowly.
little vacuumpump 5v (170 Ma)
balance / protection boards if you connect more then one li-ion battery
- https://www.ebay.com/itm/2-cells-6A-15A-peak-Li-ion-Lithium-18650-14450-Battery-In-Out-Protection-PCB/121035958560
- https://www.ebay.com/itm/3-cells-4A-w-balancing-Li-ion-Lithium-18650-14450-Battery-Input-Ouput-Protection-/111526325783
- https://www.ebay.com/itm/3-cells-8A-w-balancing-Li-ion-Lithium-18650-14450-Battery-Input-Ouput-Protection-/121293888601
- https://www.ebay.com/itm/3S-20A-Li-ion-Lithium-Battery-18650-Charger-Protection-Board-11-1v-12-6v-Cell/192006641256
ps you don’t need them for nodes 
1 Like
Nice LCD , Could u tell me from where can I buy something like this ?
Thx!
US $1.98 incl. shipping
Thx !
Don’t care If i don’t need them for nodes, it would be great for my Yaesu FT817 
1 Like
Evaluating the Meetjestad node for TTN Community TTN-Apeldoorn.
Interesting design in both hard- and software. Still many questions about the design considerations.
3 Likes
what’s 'onboard ? 328p / rfm95w / 3v3 dc dc /bme 280 . just guessing
yes, yes, yes, yes. GPS is not connected.
I think it’s an FPGA with 256M gates.
(Sensors to be added on the left.)
its an PE1duino … probably with CH2i lowpowuRrrrrrr