Miscellaneous tools schematics

Build a stunning electronic barometer replica inspired by Torricelli’s groundbreaking design. This circuit uses a Motorola MPX2200AP sensor and an LM3914 to display atmospheric pressure with 10 LEDs, offering a precise measurement range of 950 to 1040 hPa.... [read more]

Build a powerful 1.8 to 220 Volt DC or AC detection circuit with a minimum of six components. This simple and affordable schematic empowers you to easily measure voltage levels and witness the mesmerizing glow of a 6W filament lamp as it responds to your chosen voltage.... [read more]

Build precise test circuits with this innovative 1.5V battery-powered signal tracer, generating narrow pulses up to 800Hz for comprehensive amplifier and receiver diagnostics.... [read more]

Unleash your diagnostic potential with this innovative circuit, perfect for pinpointing faults in audio and radio equipment. Generate rich harmonic square waves or trace audio signals with precision, empowering you to build and repair complex electronic systems.... [read more]

Build your ultimate servo control system with this innovative tester, featuring a 20ms frame duration and precise potentiometer control for seamless servo movement and automated testing. Download the schematic, PCB, and assembly code to unleash the full potential of your servos.... [read more]

Build a dynamic sound level meter with this innovative circuit, detecting changes from 60 to 70 dB and illuminating three indicator LEDs representing a 3dB increase in volume – perfect for monitoring and experimentation.... [read more]