Difference: WoodenBox (5 vs. 6)

Revision 62018-08-27 - PeterSchmid

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RaspiElf running

RaspiElf w/ TFT

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< Of course you do not need any monitor but it is very convenient to have one built in. Especially if you want to use emulators like the CP/M Plus emulator or the DOS box, or to have terminal emulator for the BASIC3. A USB keyboard can simply plugged in, I use Bluetooth keyboard because the Raspi has Bluetooth on board.

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> Of course you do not need any monitor but it is very convenient to have one built in. Especially if you want to use emulators like the YAZE-AG (Z80, CP/M Plus), the DOS box, or a terminal emulator for the BASIC3. A USB keyboard can simply plugged in, I use Bluetooth keyboard because the Raspi has Bluetooth on board.

Buttons for Shutdown and Run

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pi@cosmac:~ $ sudo poweroff

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I would like to use only one button for turn off and on again the Raspi as described in How to add a power button to your Raspberry Pi

but for this we need GPIO3 and this pin is already used by the I2C communication. I chose GPIO21 (pin 40) for shutdown

https://github.com/raspberrypi/firmware/tree/master/boot/overlays

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> I would like to use only one button for turn off and on again the Raspi as described in How to add a power button to your Raspberry Pi but for this we need the GPIO3 and this pin is already used by the I2C communication. I instead chose GPIO21 (pin 40) for shutdown, this can be configured with overlays

Add following line to the file /boot/config.txt

dtoverlay=gpio-shutdown,gpio_pin=21

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Run

If the Raspberry Pi is in HALT mode then you can start it again with switch off (pull the plug) and switch on again or hit the RUN button.

P6 Pinout

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P6-02

GND

Wiring the RUN and the SHUTDOWN switches

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There is pullup resistor for SHUTDOWN switch

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There is pullup resistor (10 k to 3.3V, pin 17) for SHUTDOWN switch

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