Classic HP41 Calculator EmulatorDesigned by HobbyStone in United States of America
Hardware emulating the Classic HP41C Calculator/ Build a fun, educational easy to build calculator. Features: All Through Hole parts. (easy to handle and solder) Runs about 25% faster than the ori...Read More…
Hardware emulating the Classic HP41C Calculator/
Build a fun, educational easy to build calculator.
The 3D case STF files can be downloaded from thingiverse
The key overlay is printed on a standard Overhead Projector transparent film and can be downloaded from here, or on white paper.
More info at voyager.
You will receive the following:
|C1, C2||2||0.1µf||Decoupling Capacitor|
|J1||1||6 pin female header||SPI Programing header|
|BAT||1||Battery Holder||CR2032 Battery Holder|
|XTAL||1||Clock Crystal 32.768kHz||Clock|
|R1||1||10KΩ||Reset pullup resistor|
|R2||1||10Ω||LCD backlight resistor|
|BTN's||39||6x6mm tactile switch||Key buttons|
|RST||1||6x3.5 mm tactile button||Reset button|
|DISP||1||Display 192X64 LCD||Display|
|1||9 pin male header||For Mounting Display|
|1||double sided tape||to attach display to microcontroller|
|4||rubber feet||rubber feet|
The case, battery and overlay are not included.
To upload new firmware you will need a AVR SPI programmer. Such as the usbasp.
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