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“So hey guys in today’s article we are going to make a DIY lab bench power supply circuit. As you know using this circuit we can adjustable the voltage but we can also adjust the current at 10 amperes …
“This is a small LED lantern to be installed inside the farm storage house. As the size of the storage house is less than 10 square meters, the brightness of the LED lantern is not necessarily high and strong. This …
“Today, I would like to share how to build a “Talking Clock” based on Adafruit Circuit Playground Express board, which can notify the real time, temperature and light level by voice. The main components are included: 1pcs x Adafruit Circuit …
“This is small power (Less than 10Watt) transistor amplifier using LM386 and TIP41/42. Although output power is not much impressive, still it can well serve as an amplifier for PC speaker and MP3 player. When living in a packed …