Kit de reloj electrónico LED - DIY DS1302 Digital Set 51 MCU Learning Starter

Features: 100% brand new and high quality This is a set of electronic components that you can use for DIY clock The kit contains many LEDs which can make your very special clock a voltage of 5V as the power source, and a 3V button cell battery can be used for the clock chip on the back-up power board Convenient; use, this is a great set for 51 MCU learners Features: PCB thickness: 1.6mm / 0.1in Material: military grade FR4 Digital tube display: red Voltage power supply: miniUSB, external connection & agrave; 5VBattery: CR2032 button cell battery (not included) Assembled size: 8.5 * 8.5cm / 3.4 * 3.4inWeight: about 72gPackage include: 1 x Clock DIY Kit (the clock case and battery do not include are not included)