Please note this does not include CR1220 battery.
Clock Shield (digital clock module) Shield contains most common resources for a basic electronic project, like buttons, sensors, buzzer and display, it's compatible for Arduino.
And it is a perfect start for beginners.
Hardware resources:
- Battery Holder : Battery on the card to the real-time clock chip power supply , making the board can continue to power down timer
- Buzzer : 5V DC buzzer , do alarm clock, key tone
- Photoresistor : intensity of ambient light sensor
- Thermistor: detecting environmental temperature
- K1 ~ K3: SCM can be scanned directly touch of a button
- U5: TM1636, namely, four 8-segment common anode LED Driver IC
- U3: DS1307, namely, real-time clock chip
- D1 ~ D4: blue, green , red, red , 3mm plug LED
- Digital tube: 4 8 segments of positive points with a digital clock , and the decimal point is not displayed , only for identification purposes direction
Occupied Shield pin Resources: Total occupied nine digital pins , two analog input pins, an I2C interface
- D2: control blue LED1
- D3: Control the green LED2
- D4: Control the red LED3
- D5: Control the red LED4
- D7: connection TM1636 clock pin SCLK
- D8: TM1636 data connection pin DIO
- D9: control keys K1
- D10: control buttons K2
- D11: control buttons K3
- A0: poll readings from temperature sensor
- A1: poll readings from light sensor
- A4: connect the DS1307 I2C data pin SDA
- A5: connect the DS1307 I2C clock pin SCL