Winging it

I decided to switch my homebrew tracker over to a RAK5010 board:   New board! I thought it was going to be an ideal choice since the previous tracker based on the A9G had needed lots of tweaks - a fix to the power circuitry, adding a charging board and had no inbuilt ANT+/Bluetooth so I'd had to add a second radio board also. The homemade (up to build version 9) unit was getting a bit clunky: Getting a bit crowded in here (also the development support for it is effectively dead with no opensource firmware and multiple unresolved known bugs) so the idea of a single all-in-one board was attractive with the RAK5010 based on the Nordic NRF52 chipset with integrated BT/ANT+, charging circuitry and a BG96 GPS module on board.  I thought this would be a much better platform.... That was the idea. Predictably after playing with it for a bit I do already have a wish-list for their next version, and pondering alternatives or building myself a custom board. The current wishlist for th...

"Winter is coming" how can they not have used that tagline? Mainly tech talk. but a leetle bit of running. Telemetry So I've been getting carried away with running telemetry, was generally happy with my GPS tracker (although I do have some ideas for switching to different underlying hardware) but I'd always thought it would be neat to have a remote view of heartrate on long runs* but I never got around to adding it although I had purchased an additional wireless module to get the ANT+ data ages ago. This has been sitting on my desk for months, although my main excuse here was because an ebay ordering oversight which meant the board that arrived was the size of a postage stamp. *e.g. tracking HR drift can highlight issues with dehydration during extreme events. Core Then I happened upon the CoreTemp body temperature sensors and thought this might be a neat way to keep an eye on how things are going and spot in advance before I get into trouble (having had multiple fa...