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Tag Archives: LCD
PCB – The sun is the thing
I finally got back on the PCB fabrication horse. I printed out v1.1 of the 74HC595 LCD backpack, and v1.0 of the MCP23008 version. I chopped up the transparencies and mounted them up on Saturday, then worked on getting the … Continue reading
Breadboard works
With my initial hubris about circuit construction dulled by a couple of nasty bugs and failures, I decided to construct my next circuit the old fashioned way — I bread boarded it first. I wanted to do an I2C version … Continue reading
PCB Fab – Breadboard first!
After failing to get the 74LS174 board working, I decided to go with the flow and build a 74HC595-based LCD driver board instead. There are plenty of examples online, from Adafruit to Steve Hobley to Rowan Simms — this will … Continue reading
PCB Fabrication – OK, I over-reached
I decided to tackle my first circuit that includes an IC. I picked an old standby, the Myke Predko 2-wire LCD backpack, where he uses a Hex Buffer (74LS174), wires it as a shift register, and then uses a diode/resistor … Continue reading