Kit Jam Digital 6 digit AT89C2051

Kit Jam Digital 6 digit AT89C2051 - Barang masih berupa kit belum di solder - Tidak termasuk batre backup, hanya di sediakan soket/ holder nya saja. - Untuk menyalakan display diperlukan tegangan ekternal/adaptor 6-12V, batre kancing hanya untuk backup waktu nya saja, jadi kalau mati listrik display akan mati tetapi jam tetap jalan. Dan setelah listrik hidup display akan nyala dan waktu tetap akurat tidak perlu seting lagi. S1 button is used to calibrate the time, press and hold for more than two seconds to enter the calibration time status and exit quickly tap for adjusting the time value. The circuit has added a 3V battery backup, power outage AT89C2051 using spare batteries, the clock does not stop, but digital is not displayed after the call backup battery out of action, AT89C2051 uses an external power supply, the digital tube display properly. So you can add a power switch, turn off the power when they go out, come back out again, the normal display, to achieve the purpose of saving electricity. Time accurate. Specifications: Model:AT89C2051 Working voltage: DC 6-12V Recommend voltage: DC 9V Working current: 35mA Standby current: 1.2mA Specifications: 89C2051 digital clock kit, control chip AT89C2051 The circuit has added a 3V battery backup Time accurate Durable and practical 100% brand new and high quality Package Included: 1 x Set DIY Kit Module LED Electronic Clock Parts Components