Electronic Modules
Ready-made modules that save you a breadboard: relays, voltage regulators, battery chargers, real-time clocks and USB-to-serial adapters for Arduino and ESP32 projects. 5 Products
Temperature-compensated real-time clock that stays accurate to about a minute a year, plus 4 KB of EEPROM. Keeps time on a coin cell when the power is off – for data loggers, alarms and timer
Charge a single 3.7 V Li-ion or LiPo cell (18650, pouch) from any USB-C charger at up to 1 A. Built-in over-discharge, over-charge and short-circuit protection. Two modules per pack.
Efficient adjustable step-down converter: 4–40 V in, 1.25–35 V out, up to 3 A peak. Turn a 12 V adapter or battery pack into a clean 5 V or 3.3 V supply for your boards.
Switch lights, fans, pumps and solenoids from an Arduino, ESP32 or Raspberry Pi. One 5 V relay rated 10 A, with optocoupler-isolated input, status LED and screw terminals.
USB to serial (TTL UART) adapter with the Silicon Labs CP2102. Flash ESP8266/ESP32 modules, program Arduino Pro Mini, or read debug output from any 3.3 V or 5 V microcontroller.
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