I2C Slave 4x2 LED Display
||LED Display I2C Slave Board
||The LED Display Slave is a simple two line four digit LED
display to provide numerical and limited alpha display
for applications that could use a local display.
||8 MHz CPU, two lines of four 0.56 LED 7-segment displays.
||3.8" x 2.5"
||3 - 5 VDC from I2C bus
||LED Display Slave schematic
The LED Display Slaved is designed to show the flexibility provided by using
I2C to connect periferals to a project.
It uses an ATmega88/328 chip with a ULN2803 driver to drive 0.56" LED 7 segment
displays configure into two groups of 4.
Power is supplied through the I2C bus and is a max of 40ma with 5v.
There are jumper to control the use of the I2C terminators.
- 8 MHz AVR ATmega
- 2 lines of 4 LED 0.56 high digits
- I2C supplied power. 3 to 5 vdc @ 40ma max
- Dual I2C RJ-9/22 connectors for daisy-chained modules
- AVR ISP programming header