Geekcreit® Large Size 1 Inch DIY DS3231 Light Control Rotation Oval Shape LED Electronic Clock Kit With Housing Size 152x29x112mm Alarm Replaceable 12/24 Hour Switchable

Package included housing, without housing version: product ID 1132729 Documents download: Key-Function: http://files.banggood.com/2016/EC1620-Key-Function-V06.pdf Circuit diagram: http://files.banggood.com/2016/Circuit diagram.zip Manual: http://files.banggood.com/2016/EC1620_V06-manual.pdf Optional Color: (With housing version) Red digital tube + Red/Green circle LEDs Blue digital tube + Red/Green circle LEDs White digital tube + Red/Green circle LEDs Green digital tube + Red/Green circle LEDs //////////////////////////////////////////////////////////////////// Red digital tube + Red/Blue circle LEDs Blue digital tube + Red/Blue circle LEDs White digital tube + Red/Blue circle LEDs Green digital tube + Red/Blue circle LEDs EC1620 electronic clock introduction: Using MCU to read the clock data in DS3231, shown on the digital tube and LED. Digital tube and LED using LED special constant current drive chip TM1818 to achieve the best display effect. Using the voice control module to output sound, to achieve voice timekeeping and alarm function. Through the button can set the time, alarm clock and other functions. Compare with product ID:1053190: This product product ID 1053190 Chip DS3231 DS1302 PCB size 100x140mm 81x81x1.6mm Size with case 152x29x112mm 93x93x26mm Size of digital tube 1 inch 0.56 inch Size of LEDs 5mm 3mm Shape of LEDs Oval Round Sound Speaker Buzzer USB port Micro USB Mini USB Note: It is assumed that users have soldering skills and troubleshooting skills to assemble this kit. Buyers are advised that due to skills of user is involved in assembly it is not guaranteed every kit will end up being a working device. But we will make as much efforts as we can to approach that goal. When soldering the SMDs, the temperature can not too high, otherwise there is the risk of bad soldering. Please note that the direction of LED, LED long legs for the positive. The second digital tube's point is in the bottom, is different with the other three points. RT1 is a thermistor, RL1 is a photosensitive resistor. And the length of the pin should be enough to extend out of the shell. The speaker is connected to the O1 and O2 of the voice module and is glued to the lower right corner of the circuit board with a double-sided adhesive tape. Please be sure to finish soldering the back side of the components and then soldering the digital tube. Specification: Power: DC3V-DC5V (Adapter does not includes) Working current: