REAL TIME CLOCK MODULES
- Current draw: 20uA
- Product Dimensions: 19.5mm x 17.8mm x 5.0mm
- Product Weight: 1.4g
RM35.00
- Raspberry Pi DS3231 foreign high precision clock module
- Pay attention to the module Arduino motherboard can also be used
- The module itself can be adapted to 3.3 V and 5 V system
- No level conversion, it is super convenient
RM6.50
- Dimensions: 16.5mm x 26.3mm x 1.6mm
- Backup battery CR1220, voltage 3V, current 260mAh, non-rechargeable batteries. Theoretical data hold time is more than 10 years!
- Crystal 32.768KHz, matching capacitance 6pF, size 2 * 6mm
- DS1302 8-pin SMD homemade chips
- Module operating voltage compatible 3.3V/5V, can be connected with 5V and 3.3V microcontroller
- Operating temperature: 0 -70 degree
RM6.50
- I2C serial interface
- 5V DC supply
- Programmable Square-Wave output signal
- Automatic Power-Fail detect and switch circuitry
- Consumes less than 500nA in Battery-Backup Mode with Oscillator Running
RM29.00
- Brand new and high quality
- DS1307 Real Time Clock developed by one of our designer
- Fully assembled and pre-programmed with the current time
- The DS1307 is accessed via the I2C protocol
- Two wire I2C interface
- DS1307 based RTC with CR2032 battery (non-rechargeable)
RM4.90
- Size: 38mm (length) * 22mm (W) * 14mm (height)
- Weight: 8g
- Operating voltage: 3.3 - 5 .5 V
- Clock chip: high-precision clock chip DS3231
RM5.50