Editing LCD/Encoder backpack for Fox Board
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Then I'm going to wire it up on a breadboard. I think. | Then I'm going to wire it up on a breadboard. I think. | ||
− | The next targeted master system would be the [http://www.acmesystems.it/?id=4 Fox Board], because I have it readily available. I've been able to get various LC displays working on the Fox Board, but it's pretty clumsy (using [http://www.sparkfun.com/commerce/product_info.php?products_id=8430 these] prototyping wires. they're fun, but clumsy). I'm also experimenting with some VFD displays that I was able to obtain. They suck power, but look pretty cool. I | + | The next targeted master system would be the [http://www.acmesystems.it/?id=4 Fox Board], because I have it readily available. I've been able to get various LC displays working on the Fox Board, but it's pretty clumsy (using [http://www.sparkfun.com/commerce/product_info.php?products_id=8430 these] prototyping wires. they're fun, but clumsy). I'm also experimenting with some VFD displays that I was able to obtain. They suck power, but look pretty cool. I'll probably be wiring it myself using one of their [http://www.acmesystems.it/articles/00060/FOXP254-VP2.jpg prototyping daughter boards] that should be arriving very soon. |
− | The next target will be a custom board. This board should be | + | The next target will be a custom board. This board should be able to carry the LCD, the encoder and it should be a bit flexible. The idea is to have all the wiring on the PCB but you only place the components that you need. I'll design it with room for both 16-pin SIL header and 16-pin DIL header for the different types of LCDs that I have. Oh and I want to drive the LCD backlight with a PWM output (if anyone has an idea on how to wire something cheap that will provide the current, please help) so that I can "fade" the backlight in and out. Oh and I'll skip the RS-232 level shifting and go straight for an FT232RL usb converter. If your target computer is big enough, it'll have a spare USB socket. If it's small enough, it'll have TTL level UART. If not, I'm keeping the SPI pins available for programming, so you're welcome customize the firmware to use 1-wire, 2-wire or 3-wire interfacing. |
− | Except for the | + | Except for the pin-change interrupt, the schematic looks like it's compatible with the older AT90S2313. |
== Motivation == | == Motivation == |