want to use it as a solar temperature / alarm sensor
every 5 minutes a temperature reading and at night it also switches on the alarm function with the buildin pir detector.
try for minimal wiring (3 to original PCB)
ds18b20 test
before
after 
I am interested to see how this works @BoRRoZ. I have some of these in transit and today the postman delivered some TP5000 modules to charge a 3.6v LiFe04 cell in that slot from small solar. Properly protected (ironically from UV!) this is potentially a €15 permanently deployed LoRaWAN end device.
This is the sort of price one would envisage for a production device not something from @BoRRoZ or @GryKyo hacking at home!
Has been almost all uPython lately, will be a bit of a shocker to dive back into LMIC in Arduino though my IDE of choice has evolved to PlatformIO mostly…
Keep us posted ?
G
LTC3780 Automatic Regulator Constant Voltage/Current Step Up Down solar Charging
’ The whole electrolysis using imported patch, low resistance, high frequency capacitor, make the ripple down to the freezing point. ’ … 
just missing a few parts for this POC
yagi no 4 arrived - now I have 4 identical antenna’s
The cats?
* now a mechanism… these yagi’s should unfold like an umbrella 
Making holes…
… the easy way 
that’s cool 
Are you going to stack them to create a single directional antenna or create a 4-directional antenna?
a 4 directional and one omni… connected to a digital attenuator, a node and a gateway, a GPS and a digital compass.
all MCU controlled
Sounds interesting.
We will probably get to see more of it later. 
back to the ‘solar’ node … some code glue
This seems to be a thread for ‘obscure’ bits of hardware.
Anyone know where I can get a development board (just the bare board) in the style of the photograph below;
Feed up with using dodgy breadboards for testing designs etc.
take my money too !
but for the moment I have every size FR-4 glass fiber proto board ’ in stock
You maniac…
