EEVblog 1699 - µTimer PROJECT Part 1 - The LCD

Part 1 of the µTimer project, a versatile benchtop lab timer. Choosing the LCD, and getting two sample LCD's running. One using a demo board, and one that needed to be hacked onto a Raspberry Pi. 00:00 - Benchtop Lab Timer Project 01:19 - It's all about the choice of LCD 03:14 - ERC19624-1 192x64 Transflective 4" LCD 03:44 - Reflective vs Transflective LCD's 05:01 - ER3806 Font Chip 06:06 - Demo Board 09:10 - LCD Bias Angle and Viewing Angle Explained 11:45 - What is THAT? LCD Bleeding? 13:19 - Power consumption measurement 15:48 - Trying another LCD, the ERC19624-6. What difference does a dash number make? 17:15 - Bodging on the LCD connector to the breakout board 20:34 - The pin offsets and lack of routing is annoying... 22:10 - Reprogramming the 8051 demo board, it should be easy, right? 26:32 - Entering The Matrix 29:40 - More soldering 30:33 - The Programmer Software doesn't work without a HEX file... 32:17 - All of that for nothing... 33:40 - Let's try this Arduino / Raspberry Pi ST7525 LCD code 35:36 - Getting the Raspberry Pi running and installing the BCM2835 C library 38:56 - Getting the Make to work on the source code. 40:01 - Make Clean should work... 41:16 - Winner Winner Chicken Dinner 41:10 - Power consumption measurement. This one is supposed to be much lower... 42:58 - Changing the LCD contrast in software 45:10 - Is it better or worse than the first LCD? 46:37 - Conclusion Links: https://ift.tt/c2VFK3S https://ift.tt/gQP5zlF http://www.airspayce.com/mikem/bcm2835/ Font Chip: https://ift.tt/bKO57Uf Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://ift.tt/xYVR5Zr If you find my videos useful you may consider supporting the EEVblog on Patreon: https://ift.tt/MpodCnW Other channels: EEVblog2: http://www.youtube.com/EEVblog2 EEVdiscover: https://www.youtube.com/eevdiscover #ElectronicsCreators #Project #Design

source https://www.youtube.com/watch?v=KhQn-RUDZ3I