PicoLCD: Difference between revisions
Brian Wilson (talk | contribs) mNo edit summary |
Brian Wilson (talk | contribs) mNo edit summary |
||
| Line 8: | Line 8: | ||
LCD: 20 characters wide, 2 rows, with backlight <br> | LCD: 20 characters wide, 2 rows, with backlight <br> | ||
CPU: Microchip 18F4550 ([http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en010300 Microchip page])<br> | CPU: Microchip 18F4550 ([http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en010300 Microchip page])<br> | ||
This chip has 32K of Flash, 2K RAM, a 13 channel 10-bit ADC, a couple comparators, and of course the 11Mbps USB port. | This chip has 32K of Flash, 2K RAM, a 13 channel 10-bit ADC, a couple comparators, and of course the 11Mbps USB port. <br> | ||
One bit switch<br> | |||
64k EEPROM<br> | |||
IR port<br> | |||
There are many interesting features on this board considering on the surface it's just a 20x2 LCD. A companion product from Mini-box is a board with buttons and an IR receiver on it. I don't have one of those, and it would not fit in 8track anyway. | There are many interesting features on this board considering on the surface it's just a 20x2 LCD. A companion product from Mini-box is a board with buttons and an IR receiver on it. I don't have one of those, and it would not fit in 8track anyway. | ||
One bit switch NC7SZ384: The board has connectors for "power in", "power out", and a "power button". The power in and and out are wired up to the switch. The "power button" is simply connected to a port on the CPU. | |||
'''to be continued''' | '''to be continued''' | ||
Revision as of 04:46, 24 October 2010
The folks at Mini-Box were kind enough to respond with both schematics and source code for my PicoLCD 20x2 display. The Mini-box page lists it as "out of stock" and they have several snazzier products now but this is the one that I have.
Now I can do something fun with it. Well. Let's say "More fun." I was already able to get it going on 8track with the generic lcd4linux program, but I want to be able to use all the extra ports on it. What I have in mind requires programming the actual board.
Some specs:
LCD: 20 characters wide, 2 rows, with backlight
CPU: Microchip 18F4550 (Microchip page)
This chip has 32K of Flash, 2K RAM, a 13 channel 10-bit ADC, a couple comparators, and of course the 11Mbps USB port.
One bit switch
64k EEPROM
IR port
There are many interesting features on this board considering on the surface it's just a 20x2 LCD. A companion product from Mini-box is a board with buttons and an IR receiver on it. I don't have one of those, and it would not fit in 8track anyway.
One bit switch NC7SZ384: The board has connectors for "power in", "power out", and a "power button". The power in and and out are wired up to the switch. The "power button" is simply connected to a port on the CPU.
to be continued
