My first version of LCD88 have processor, lcd and power source on one custom pcb board, but I’ll focus on ready modules.<\/p>\n
Processor<\/h1>\n\n- Project uses Atmega88 (soon will be discontinued), Atmega168 or Atmega328 AVR processor.<\/li>\n
- Code supports frequency up to 16MHz (sorry, full 20MHz is not supported right now)<\/li>\n
- Supply voltage: 3-5V, it depnds on you.<\/li>\n
- Processor should have crystal oscillator<\/li>\n
- All pins should be availabe, if you use cpu in DIP packaging, keep in mind that you have only 6 analog inputs instead of 8<\/li>\n<\/ul>\n
Basically, typical Arduino Pro Mini with Atmega328 at 16MHz is best choice for that.<\/p>\n
LCD Display<\/h1>\n
Supported displays:<\/p>\n
\n- Siemens S65 L2F50<\/strong>\n
\n- resolution: 176×132<\/li>\n
- chipset: L2F50<\/li>\n
- power supply: 3.0V<\/li>\n
- logic level: 3.0V<\/li>\n
- backlit: 10.5V<\/li>\n
- pictures:
![\"S65](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/l2f50-back-640x447.jpg\")
<\/a>\n![\"S65](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/l2f50-front-640x458.jpg\")
<\/a><\/p>\n<\/li>\n<\/ul>\n<\/li>\n- Siemens S65 LS020<\/strong>\n
\n- resolution: 176×132<\/li>\n
- chipset: LS020<\/li>\n
- power supply: 3.0V<\/li>\n
- logic level: 3.0V<\/li>\n
- backlit: 10.5V<\/li>\n
- pictures:
![\"S65](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/ls020-back-640x449.jpg\")
<\/a>\n![\"S65](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/ls020-front-640x443.jpg\")
<\/a><\/p>\n<\/li>\n<\/ul>\n<\/li>\n- HY-1.8 SPI (blue)<\/strong>\n
\n- resolution: 160×128<\/li>\n
- chipset: ST7735<\/li>\n
- power supply: 3.3V or 5.0V<\/li>\n
- logic level: 3.3V<\/li>\n
- backlit: 3.5V<\/li>\n
- pictures:
![\"HY-1.8](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/blue-st7735-back-534x480.jpg\")
<\/a>\n![\"HY-1.8](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/blue-st7735-front-541x480.jpg\")
<\/a><\/p>\n<\/li>\n<\/ul>\n<\/li>\n- 1.8TFT SPI (red)<\/strong>\n
\n- resolution: 160×128<\/li>\n
- chipset: ST7735<\/li>\n
- power supply: 3.3V or 5.0V<\/li>\n
- logic level: 3.3V<\/li>\n
- backlit: 3.5V<\/li>\n
- pictures:
![\"1.8SPI](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/red-st7735-back-640x409.jpg\")
<\/a>\n![\"1.8SPI](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/red-st7735-front-640x438.jpg\")
<\/a><\/li>\n<\/ul>\n<\/li>\n- Arduino GLCD<\/strong>\n
\n- resolution: 160×128<\/li>\n
- chipset: ST7735<\/li>\n
- power supply: 5.0V<\/li>\n
- logic level: 5.0V<\/li>\n
- backlit: 5.0V<\/li>\n
- more here<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
Connecting processor and display<\/h1>\n
TODO \ud83d\ude42<\/p>\n
Keyboard<\/h1>\n
This is only part you should do yourself.<\/p>\n
Parts needed:<\/p>\n
\n- 6x tact switch<\/li>\n
- 6x 1N4148 diode<\/li>\n
- 3x resitor 2.2k (smd 0805 if you want to use my pcb design)<\/li>\n
- 4 pins header<\/li>\n<\/ul>\n
Schematic diagram:
\n![\"lcd88](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/lcd88-keyboard-schematic.png\")
<\/a><\/p>\nPCB:
\n![\"lcd88](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/lcd88-keyboard-pcb.png\")
<\/a><\/p>\nEagle files could be found at https:\/\/github.com\/majekw\/lcd88\/tree\/master\/pcb<\/a><\/p>\nThat’s how it looks like on home-made pcb:
\n![\"lcd88](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/lcd88-kbd-front-640x374.jpg\")
<\/a><\/p>\n![\"lcd88](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/lcd88-kbd-back-640x360.jpg\")
<\/a><\/p>\nPower source<\/h1>\n
TODO \ud83d\ude42
\n<\/p>","protected":false},"excerpt":{"rendered":"
Parts There are few parts required for LCD88: Processor LCD display Keyboard Power source Sticks and switches (from old tramsmitter) My first version of LCD88 have processor, lcd and power source on one custom pcb board, but I’ll focus on …<\/span> Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1434,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages\/1453"}],"collection":[{"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/comments?post=1453"}],"version-history":[{"count":19,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages\/1453\/revisions"}],"predecessor-version":[{"id":1497,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages\/1453\/revisions\/1497"}],"up":[{"embeddable":true,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages\/1434"}],"wp:attachment":[{"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/media?parent=1453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Basically, typical Arduino Pro Mini with Atmega328 at 16MHz is best choice for that.<\/p>\n
LCD Display<\/h1>\n
Supported displays:<\/p>\n
- \n
- Siemens S65 L2F50<\/strong>\n
- \n
- resolution: 176×132<\/li>\n
- chipset: L2F50<\/li>\n
- power supply: 3.0V<\/li>\n
- logic level: 3.0V<\/li>\n
- backlit: 10.5V<\/li>\n
- pictures: <\/a>\n<\/a><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
- Siemens S65 LS020<\/strong>\n
- \n
- resolution: 176×132<\/li>\n
- chipset: LS020<\/li>\n
- power supply: 3.0V<\/li>\n
- logic level: 3.0V<\/li>\n
- backlit: 10.5V<\/li>\n
- pictures: <\/a>\n<\/a><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
- HY-1.8 SPI (blue)<\/strong>\n
- \n
- resolution: 160×128<\/li>\n
- chipset: ST7735<\/li>\n
- power supply: 3.3V or 5.0V<\/li>\n
- logic level: 3.3V<\/li>\n
- backlit: 3.5V<\/li>\n
- pictures: <\/a>\n<\/a><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
- 1.8TFT SPI (red)<\/strong>\n
- \n
- resolution: 160×128<\/li>\n
- chipset: ST7735<\/li>\n
- power supply: 3.3V or 5.0V<\/li>\n
- logic level: 3.3V<\/li>\n
- backlit: 3.5V<\/li>\n
- pictures: <\/a>\n<\/a><\/li>\n<\/ul>\n<\/li>\n
- Arduino GLCD<\/strong>\n
- \n
- resolution: 160×128<\/li>\n
- chipset: ST7735<\/li>\n
- power supply: 5.0V<\/li>\n
- logic level: 5.0V<\/li>\n
- backlit: 5.0V<\/li>\n
- more here<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
Connecting processor and display<\/h1>\n
TODO \ud83d\ude42<\/p>\n
Keyboard<\/h1>\n
This is only part you should do yourself.<\/p>\n
Parts needed:<\/p>\n
- \n
- 6x tact switch<\/li>\n
- 6x 1N4148 diode<\/li>\n
- 3x resitor 2.2k (smd 0805 if you want to use my pcb design)<\/li>\n
- 4 pins header<\/li>\n<\/ul>\n
Schematic diagram:
\n<\/a><\/p>\nPCB:
\n<\/a><\/p>\nEagle files could be found at https:\/\/github.com\/majekw\/lcd88\/tree\/master\/pcb<\/a><\/p>\n
That’s how it looks like on home-made pcb:
\n<\/a><\/p>\n<\/a><\/p>\nPower source<\/h1>\n
TODO \ud83d\ude42
\n<\/p>","protected":false},"excerpt":{"rendered":"Parts There are few parts required for LCD88: Processor LCD display Keyboard Power source Sticks and switches (from old tramsmitter) My first version of LCD88 have processor, lcd and power source on one custom pcb board, but I’ll focus on …<\/span> Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1434,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages\/1453"}],"collection":[{"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/comments?post=1453"}],"version-history":[{"count":19,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages\/1453\/revisions"}],"predecessor-version":[{"id":1497,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages\/1453\/revisions\/1497"}],"up":[{"embeddable":true,"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/pages\/1434"}],"wp:attachment":[{"href":"https:\/\/majek.sh\/en\/wp-json\/wp\/v2\/media?parent=1453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- Arduino GLCD<\/strong>\n
- 1.8TFT SPI (red)<\/strong>\n
- HY-1.8 SPI (blue)<\/strong>\n
- Siemens S65 LS020<\/strong>\n
![\"S65](\"https:\/\/majek.sh\/wp-content\/uploads\/2014\/06\/l2f50-back.jpg\")
<\/a>\n