There have been questions about "fitting" LCD's and backlight wiring on AXE033.
Here is a little help.
If someone has done like me, made some boxes for Picaxe products (using AXE033), wouldn't it be nice to find a lcd, that fits in the same hole than ACM1602B (the one delivered with AXE033)?
Found one...
Nice blue/white lcd THAT IS EXACTLY THE SAME SIZE THAN ACM1602B!
Also, pinout is the same. So, it fits straight to AXE033 - board.
Type is EA W162B-NLW.
They have also 4x20's at a reasonable price...
Connecting backlight to axe033 - tutorial:
1. Connect also pins 15 and 16 between lcd and axe033-board
2. Look at the picture. Lcd's power-contacts are on the up-right corner.
They can be connected to V+ and gnd on the AXE033-board OR wired separately from other power-source.
3. Solder a resistor to the place "RB". Value depends on the used lcd.
EAW162B-NLW is told to drain 15mA at 3-3,6Volts. That gives 133R at
3V/15mA, if Vdd=5V ,and 100R with Vdd 4,5V.
To be "at the safe side", I chose 160R (backlight ON maybe years straight)
and with it, the light is bright enough for indoors use.
There's a alternative for Axe033, too (if clock is not needed)
Found this one: http://www.sparkfun.com/commerce/product_info.php?products_id=258
Ordered a few of them, but haven't yet got...
I will tell more about those too, as soon as I get my hands on them.
Here is a little help.
If someone has done like me, made some boxes for Picaxe products (using AXE033), wouldn't it be nice to find a lcd, that fits in the same hole than ACM1602B (the one delivered with AXE033)?
Found one...
Nice blue/white lcd THAT IS EXACTLY THE SAME SIZE THAN ACM1602B!
Also, pinout is the same. So, it fits straight to AXE033 - board.
Type is EA W162B-NLW.
They have also 4x20's at a reasonable price...
Connecting backlight to axe033 - tutorial:
1. Connect also pins 15 and 16 between lcd and axe033-board
2. Look at the picture. Lcd's power-contacts are on the up-right corner.
They can be connected to V+ and gnd on the AXE033-board OR wired separately from other power-source.
3. Solder a resistor to the place "RB". Value depends on the used lcd.
EAW162B-NLW is told to drain 15mA at 3-3,6Volts. That gives 133R at
3V/15mA, if Vdd=5V ,and 100R with Vdd 4,5V.
To be "at the safe side", I chose 160R (backlight ON maybe years straight)
and with it, the light is bright enough for indoors use.
There's a alternative for Axe033, too (if clock is not needed)
Found this one: http://www.sparkfun.com/commerce/product_info.php?products_id=258
Ordered a few of them, but haven't yet got...
I will tell more about those too, as soon as I get my hands on them.
Last edited: