Micro Word Clock v2

Arduino IDE setup (must do for programming with AVRISP and Arduino)

• Download the latest version of the Arduino IDE
• cd ~/Documents/Arduino && mkdir hardware
• cd into hardware clone this repository into it
• Restart the Arduino IDE, you should see Tools > Board > ATMega328 and some other things show up

Upload instructions with AVRISP MKII programmer

Burning the bootloader

• Plug in the Gizmo so that it is powered externally - the AVRISP MKII will not work if it is not powered externally
• Plug in the AVRISP, select Tools > Programmer > AVRISP mkII
• Plug in ICSP header from AVRISP to ICSP header on Gizmo (ICSP labels on Gizmo are on back of board)
• Select Tools > Board > ATmega328/328p
• Select Tools > Processor > ATmega328p
• Select Tools > Clock > Internal 8 MHz
• If everything is good, you should see a green light at the bottom of the programmer.
• Select Tools > Burn Bootloader
• If the programmer is working, you should see a second green light flash as it is programming.

Uploading sketch

• Open MicroWordClock2-Arduino.ino in Arduino IDE
• Select Sketch > Upload Using Programmer

Upload instructions with Arduino Uno

Setting up the Arduino Uno as an ISP

• Plug in the Arduino, select Tools > Programmer > Arduino as ISP and Tools > Board > Arduino/Genuino Uno
• Select File > Examples > ArduinoISP and see a new script open
• Make sure that the correct port is selected in Tools > Port
• On the top left corner of the window, select upload

Burning the Bootloader

• Wire up the Arduino to Gizmo's ICSP header, but make sure to wire up power last (Gizmo has the standard ICSP header configuration). Use the following wiring:

Arduino pin	ICSP header pin
10	RESET
11	MOSI
12	MISO
13	SCK
5 V	VCC
GND	GND

• Connect a 10uF capacitor between Arduino's RESET pin and GND
• Select Tools > Board > ATmega328/328p
• Select Tools > Processor > ATmega328p
• Select Tools > Clock > Internal 8 MHz
• Select Tools > Burn Bootloader

Uploading sketch

• Open MicroWordClock2-Arduino.ino in Arduino IDE
• With cap still plugged in and same Tools settings as before, select Sketch > Upload Using Programmer
• The TX and RX LEDs on the Arduino should start blinking, all LEDs on the Gizmo board should light up initially, then the board should be good to go

Troubleshooting

• Make sure the correct option is selected under Tools > Board - should be Arduino Uno only when uploading ISP sketch
• Make sure the connections to the 10uF cap are good - I plugged it into a breadboard and used jumper wires to connect
• If nothing's working, try power cycling

Setting the time

• Once the sketch is uploaded, unplug the Arduino/programmer and plug in Gizmo's independent power supply
• Hold down SW1 until words start blinking. To cycle through "quarter past", "half past", etc., press SW1 the number of minutes you want to increment past the time designator
• To set the hour, hold down SW1 again until the current hour starts blinking and cycle through. Once you're done, hold down SW1 until only one LED blinks again