Low Level Measurements from High Impedance Sources: Guarding Explained
In electronics, guarding is a technique typically used to prevent or minimize current leakage from a high impedance source. This method is widely used in many low level measurements especially in low current and high resistance measurements.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.