<table class="mce-item-table" data-mce-selected="1" style="border: 1px dashed rgb(187, 187, 187); color: rgb(0, 0, 0); font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 11px; background-color: rgb(255, 255, 255);"><tbody><tr><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">Features</p></td><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">High precision clock module</p></td></tr><tr><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">Specification</p></td><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">Working voltage: 3.3~5 .5V; Clock chip: high-precision clock chip DS3231</p></td></tr><tr><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">Application</p></td><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">Various electronic products or project</p></td></tr><tr><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">Other</p></td><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">With output TTL level signal indication; Can be connected directly to the microcontroller output IO port; Anti-interference ability; Connect the microcontroller to achieve the touch switch function; The standard 2.54mm pin to do input and output connections; Surrounded by a fixed mounting holes; Module parameters: Size: 38mm (l) x 22mm (W) x 14mm (h); Weight: 8g; Operating voltage: 3.3-5.5V; Clock chip: High-precision clock chip DS3231; Clock Accuracy: 0~40 range, the accuracy 2ppm, the error is about 1 minute; With two calendar alarm clock; Programmable square-wave output; Real time clock generator seconds, minutes, hours, day, date, month and year timing and provides valid until 2100 with Leap Year Compensation; Chip temperature sensor comes with an accuracy of +/- 3; Memory chips: AT24C32 (storage capacity 32K); IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V); Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57; With rechargeable battery CR2032, to ensure the clock move normal as system power failure; Wiring instructions (with Arduino UNO R3 for example): SCL-A5, DA- A4, VCC-5V, GND-GND</p></td></tr><tr><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">English Manual/Spec</p></td><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">No</p></td></tr><tr><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">Packing List</p></td><td class="mce-item-selected" style="border: 1px dashed rgb(187, 187, 187); background-color: rgb(51, 153, 255) !important;"><p dir="ltr">1 x DS3231 clock module + CR2032 button battery</p></td></tr></tbody></table>