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cyclotron3k-
Two things.
1) Helping a teacher friend write some guides for his kids to build a lorawan network of various environmental sensors at their school.
2) Building a few prototypes for a glaciologist friend who is looking to cut the cost and increase the battery life and reliability of his currently WiFi enabled sensors that tend to die after one winter.
Stonehedge
I've got to solder the headers onto two Ttgo LORA esp32 boards today.
Ttgo are about as cheap as you can get. Last time I soldered one all of the contacts peeled off. To do it right you need to heat for the absolute minimum time but not too short because if you undercook it you'll just have to reheat and probably peel the copper off that way.
My criticism of @Colm89 's soldering is probably coming back to bite me today.