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emonGLCD openenergymon

Wireless open-source graphical LCD display unit - Arduino compatible

openenergymonitor.org/emon/emonglcd

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Description

A general purpose wireless graphical LCD display unit. Powered by an Atmega328 with an Arduino bootloader.

The emonGLCD is designed to drive a 128x64 GLCD display based on the ST7565 driver. The board has a built in HopeRF RFM12B wireless module to receive data from the emonTx energy monitoring node or an emonBase (Nanode-RF web-connected basestation) which in turn could be pulled aggregated data from a web-sever to be displayed.

The emonGLCD has an on-board temperate sensor, light sensor and two tri-color ambient indicator LED's.

Based on JeeLabs.org design.

Schematic

Board

Bill of Materials

Designator Value Description
5VUSB USB Connectors
16MHZ 16Mhz CRYSTAL
ANT THROUGH-HOLE PAD
BACKLIGHT Header 2
C1 0.1µ CAPACITOR, European symbol
C2 0.1µ CAPACITOR, European symbol
C3 0.1µ CAPACITOR, European symbol
C4 0.1µ CAPACITOR, European symbol
C5 10µ POLARIZED CAPACITOR, European symbol
C6 22pF CAPACITOR
C7 22pF CAPACITOR
C8 100n CAPACITOR
C9 100n CAPACITOR
C10 100n CAPACITOR
C11 100n CAPACITOR
C12 100n CAPACITOR
C13 10u POLARIZED CAPACITOR, European symbol
C14 10u POLARIZED CAPACITOR, European symbol
C15 10u POLARIZED CAPACITOR, European symbol
C16 10u POLARIZED CAPACITOR, European symbol
FTDI FTDI PIN HEADER
IC1 ATMEGA 328
IC2 MCP1702-33 200 mA, Low Power Low Dropout Voltage Regulator
JP1 BATT Header 2
JP2 Header 3
JP3 Header 3
P3 JEEPORT PIN HEADER
PWR/SER/I2C Header 8
R1 10k RESISTOR, European symbol
R2 100 RESISTOR, European symbol
R3 100R RESISTOR, European symbol
R4 LDR Photocell Also known as a CdS photoresistor. This is a low cost way to detect light levels. Resistance decreases with more incoming light. SparkFun SKU: SEN-09088
R5 10k RESISTOR, European symbol
R6 10k RESISTOR, European symbol
R9 4.7K RESISTOR, European symbol
R10 100 RESISTOR, European symbol
S1 OMRON SWITCH
S2 OMRON SWITCH
S3 OMRON SWITCH
SV7 SPI/ISP PIN HEADER
TEMP DS18B20 Transistor NPN
TRI-LED1 DUO LED
TRI-LED2 DUO LED
U$1 RFM12B
U$2 M20 This is just like the LOCK variant in that the holes are staggared by 5 mil, but except for the last two holes. They are not altered from the "standard" footprint layout. This is used for a special purpose on the layout of our Graphic LCD Backpack. Make sure you want to use this device before selecting it for you project!

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This project is © Glyn Hudson, and is published under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported licence.