Make a Lightweight Climbing Camera

Markus Opitz built a lightweight camera that can be operated with one hand, perfect for involved outdoor activities like climbing, via Instructables:

I used the project of Sara and Rui Santos (https://randomnerdtutorials.com/esp32-cam-take-photo-save-microsd-card/) which I modified a little bit. (Thanks to Sara and Rui). The Santos-sketch sends the ESP-Cam to deep sleep after the picture was made and saved. Deep-sleep-mode needs very low energy, but it still needs energy!

My version is only powered by my pressing finger for 5 seconds. In this way, the 150 mAh battery lasts for about 160 pictures! Five seconds with one hand? This is usually no problem during climbing at a good belay point.

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