components:
- Raspberry Pi 3B and 3B+ (multiple items)
- 2x RAVpower 16750mAh 4,5A USB power bank
- 1x Behringer UMC22 USB audio interface, 1x Mic Pre, HP amp
- 1x ESI Maya22 USB audio interface, 1x Mic Pre, HP amp
- 2x Waveshare 4" HDMI LCD (micro-USB powered)
- 1x Condenser lens, 55mm dia, focal length c. 95mm, in socket
- 1x Condenser lens, 45mm dia, in socket
- 2x Condenser lens, 55mm dia, no sockets
- AKG destroyed headphones (left / right capsule separated)
- 2x Pi camera modules (JoyIt 5 MP)
- 3x "tank skullcap" with ear openings
{kind: list, keywords: [raspberry, lens, clothing]}
tests conducted:
- power both Raspberry and screen from the RAV bank (works, even though power warning icon is shown)
- add USB audio interface (still works)
- try to see how much Mic gain we get from the cheap USB sound sticks (if it can be an alternative to the Behringer). Result: not an option, extremely bad quality and noisy.
- power with condenser microphone and 48V
- test the "destroyed" AKG headphones capsules
- ESI Maya22 : ensure control software compiles on Raspi
- power with Pi cameras
{kind: list, function: memo, keywords: [prototype]}
