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Can I …?
Can I operate a thermocouple on a Revolution Pi module, i.e., an AIO module?
No, unfortunately not.
Can I expand the RevPi's internal memory with an SSD or nvme?
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→ Related to Core 1/3/3+/SE/S, Connect 3/3+/SE/S, Flat, Compact
Can I destroy modules in a hardware setup because of a short circuit?
In a hardware setup with several IO modules and a Revolution Pi Connect SE module, a short circuit occurred at power up. I should mention that at the time of the damage to the IO modules, a USB cable was attached to put the controller into bootloader mode to read the disk image, so I was thinking maybe the cable was defective. However, I tested the cable OK on other devices and it seems to be fine. How can this be?
The Revolution Pi Connect SE module works and is not affected by the polarity reversal because it has a galvanically isolated power supply.
If individual IO modules are connected with reversed polarity, this can lead to destruction.
Have Take a look at Video Tutorial #12 - – Controlling the Digital IO Modules with the PiBridge. There it is explained why a short circuit can occur due to the polarity reversal of individual modules. https://revolutionpi.com/tutorials/video-tutorials/#VT12
It certainly couldn't be the USB cable. A USB2 port does not bring the current that would be needed, USB2 sources shut down at more than 500mA, except chargers and powerpackpower packs. So, no, a IO module was incorrectly polarized.
Can I experiment with the
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RevPi stretch image on a standard
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Raspberry Pi 3b+?
No, because the image was adapted to the RevPi hardware.
In the GitHub repository are all the sources to make adjustments and, if necessary, adapt the image according to your needs.
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Can I operate a second RevPi Con CAN module?
No, unfortunately, it is not possible to maintain more than one RevPi ConCAN Con CAN module.
https://revolutionpi.de/forum/viewtopic.php?f=4&t=2705
Can I use 868 MHz with a
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LoRa antenna?
More or loss - have – take a look at Using ISM Interface for Wireless M-Bus.
There is unfortunately no process image integration out of the box. But you are free to implement it yourself.
https://revolutionpi.de/forum/viewtopic.php?f=3&t=2749
Can the DIO module also be connected to other hardware, like the
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Raspberry Pi 4B?
Well, that depends on whether you are willing to invest time and effort in the implementation.
The PiBridge interface and the piControl PiControl driver are documented here:
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No, unfortunately not. Please contact Faytech here:
https://www.faytech.com/product/accesso ... -brackets/
What
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can I do when no picture appears on the HDMI screen although the power LED is on?
Do you have a micro USB cable connected? Please remove it and restart your RevPi by disconnecting it briefly from the power supply. Then it will boot normally again.
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| Note |
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This is a workaround and therefore cannot be supported by us. |
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How can boot/mount the
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RevPi Device
there are two solutions.
1. Solution
Connect the revpi RevPi with a microMicro-usb USB cable to a Linux computer
run rpiboot
mount the 2nd partition
edit the fstab
unmount the partition
disconnect from usbUSB
Solution
Reinstall your revpi RevPi with a new image. youYou'll lose all your date data on the revpiRevPi
The DI card (also the DI part of DIO) has L (bit UV2) and LL (bit UV1) voltage detection on the X2-I terminal. Why are these bit's bits not available for the DO part, hence the X2-O terminal?
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How to keep the relay contact OPEN when the power is off?
unfortunatelyUnfortunately, it is not possible to keep the relay contact open when the Power is off: the revpi RevPi connect is equipped with a relay that is normally closed by default. see See here: (8) Relay contact is closed when a device power is off - Revolution Pi Forum
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