| Discover the second version of the Laptop charger, which was made more compact with an OLED display. In the first version of this project, t...
gfaman (39)
| In the first version of this project, I was using some modules associated to an LM317 to charge the batteries. Here, it is new full schemati...
| When a laptop has no more valid internal battery, it is frustrated to immediately loose the session when remove (intentionally or accidently...
| With 2 modules quite cheap on the market, fast and enough charger / discharger with capacity measurement for Lithium battery
| What would be the best power supply for a Raspberry-Pi-based audio streaming system? One that doesn’t introduce any noise and that is stable...
| When a battery-operated device can also recharge its batteries, it can be useful to measure its instant and average current in both directio...
| What can be the best power supply ? One with isolated from the main 220v, battery power, linear regulated. The battery will be recharged wh...
| To display for a device which have discharging and charging capability, the instant and average current in both direction, from 2A to 100uA....
| Tired of your kids shooting foam balls and arrows at your expensive decorative objects? Then build this multi-shooter electronic target for...
| Multiplayer target with score management and OLED display.