raspberry rtc

{"cid":"91189487","title":"pcb printed circuit board arduino raspberry DS3231 pcb assemblies IC precision RTC real time clock memory memory module","imgUrl":"https:\/\/img.chinax.com\/nimg\/db\/78\/7aa0b8a2f02c2ecf5972aaf2d4de-200x200-1.jpg","attrs":{"Price":"Negotiated","Brand Name":"CANYI","Model Number":"CY-DS3231","Minimum Order Quantity":"300pcs","Delivery Time":"10-15 days","Certification":"RoHS","Place of Origin":"Guangdong, China","Payment Terms":"Telegraphic Transfer in Advance (Advance TT, T\/T)","Supply Ability":"15,000,000PCS Per Day","Packaging Details":"Dimensions per Unit:19*6.3*21 centimeter \u2022 Weight per Unit:100g\u2022 Units per Export Carton:10000 \u2022 Export Carton Dimensions L\/W\/H: 42*33*24 centimeter\u2022 Export Carton Weight:3 Kilograms","Product name":"custom printed circuit board","Size":"50 x 26 x 18.5mm (L x W x H)","Maximum load":"AC 250V\/10A, DC 30V\/10A","Trigger current":"5A","Module size":"50 x 26 x 18.5mm (L x W x H)","DC+":"positive power supply (VCC)","DC-":"negative power supply (GND)","IN":"normally open relay interface"}}