gfaman (41)

| Air pump (like CPAP) with pressure control, working with any brushless motor and ESC for breath help.

| Nixie night clock with alarm with motion sensor to show the time during the night

| Mini device which display PM2.5 with temperateure and humidity. Work on battery for weeks, display last measure, hourly and AQI value.

| For battery assembly, a spot welding tool is nice to have. I develop this portable version, using a super capacitor and recharged with stand...

| Display of your number of subscribers from your Youtube channel on an old fashion Nixie display with time

| Christmas was nice for the kids. Unfortunately, these toys need endless batteries. I replace them with 2 lithium phone battery with charger

| Display air dust situation as well as temperature and humidity:

| Alert a city biker when some cars are approaching too close on the left side or on the right side.

| Measurement of slow voltage variation and upload to the cloud

| Always on, solar powered, stand-alone 24/7 Wi-Fi repeater.