Cree un cargador de baterías para salidas de 5v, 7v, 9v y 12v con un LED que indique qué salida se está utilizando. Con un dip switch y que utiliza una pantalla o LEDS para indicar el nivel de carga de la batería o si está cargando o no, que cuando la batería esté cargada a la mitad emite un sonido y cuando termina de cargar emite de nuevo el sonido y que deje de cargar automaticamente

Guitar pedal starter template based on project by Mark Wu. Includes schematic and PCB layout for basic DIY pedal hardware. This includes two 1/4" jacks (one for input and one for output), a 9V power supply (including LED), a 3PDT true bypass wiring setup, and an example potentiometer that can be copy/pasted throughout the circuit. The headers are meant to be unpopulated so that wires can be soldered to the pads. PCB design rules imported from the JLCPCB 2-layer stackup template. #template

PWM-capable low-side MOSFET driver for controlling a 9 V LEGO motor from a Raspberry Pi 3.3 V GPIO signal, sized for up to 1.4 A stall/current peaks.

Guitar pedal starter template based on project by Mark Wu. Includes schematic and PCB layout for basic DIY pedal hardware. This includes two 1/4" jacks (one for input and one for output), a 9V power supply (including LED), a 3PDT true bypass wiring setup, and an example potentiometer that can be copy/pasted throughout the circuit. The headers are meant to be unpopulated so that wires can be soldered to the pads. PCB design rules imported from the JLCPCB 2-layer stackup template. #template

Raspberry Pi Pico HAT for WiFi communication and independent control of up to four 9V motors from GPIO GP18-GP21.

Guitar pedal starter template based on project by Mark Wu. Includes schematic and PCB layout for basic DIY pedal hardware. This includes two 1/4" jacks (one for input and one for output), a 9V power supply (including LED), a 3PDT true bypass wiring setup, and an example potentiometer that can be copy/pasted throughout the circuit. The headers are meant to be unpopulated so that wires can be soldered to the pads. PCB design rules imported from the JLCPCB 2-layer stackup template. #template

Guitar pedal starter template based on project by Mark Wu. Includes schematic and PCB layout for basic DIY pedal hardware. This includes two 1/4" jacks (one for input and one for output), a 9V power supply, a 3PDT true bypass wiring setup, and an example potentiometer that can be copy/pasted throughout the circuit. size is a good default size for a 125B enclosure. The headers are meant to be unpopulated so that wires can be soldered to the pads. PCB design rules imported from the JLCPCB 2-layer stackup template. Meant to be used with the 3PDT Breakout Board on my profile. #template

Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer, on/off switch, through-hole passives, and a PP3 battery holder.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer in astable mode, an on/off switch, and through-hole support components for approximately one blink per second.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer astable circuit, an on/off switch, and through-hole components.

Through-hole 9V battery-powered 555 timer circuit that blinks a red LED about once per second through an on/off switch.

Hand-solderable 9V battery powered NE555 astable circuit that blinks a red LED about once per second through an on/off switch.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer astable oscillator, on/off switch, and through-hole components.

Hand-solderable 9V battery-powered 555 timer circuit that blinks a red LED at about once per second through an on/off switch.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer in astable mode, with on/off switch and required decoupling/bypass capacitors.

Hand-solderable 9V battery-powered red LED blinker using a 555 timer astable circuit, on/off switch, and through-hole support components.

Through-hole 9V battery-powered 555 timer circuit that blinks a red LED about once per second through an on/off switch, designed for easy hand soldering.

Through-hole NE555 astable circuit that blinks a red LED about once per second from a switched 9V battery.

Through-hole 9V NE555 astable timer circuit that blinks a red LED about once per second using a battery and on/off switch.