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idheath Member
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I’m thinking of buying a GSM4(3G) module, or may be rhe 2G version. I have a spare UCM, can I use that rather than buying the whole UCM-GSM unit? Also is the GSM4(3G) available on its own. Thanks |
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Swiss-Toni UCM Pi Users
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The GSM has its own UCM board if I remeber rightly |
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slychiu Administrator
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You can buy the GSM submodule but the UCM Firmware for GSM is diferent from the firmware for the regular UCM, so you cannot plug in a GSM onto a normal UCM baseboard The UCM firmware uses the Comfort protocol while the uCM/GSM firmware talks to the GSM module using AT commands |
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idheath Member
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Thanks. So does that mean I can use my existing UCM with different firmware then? |
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slychiu Administrator
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Sorry I must have given the wrong explanation No you cannot use the UCM and plug in the GSM submoduleThe UCM/GSM has a different firmware from UCM/USB/ETH |
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idheath Member
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slychiu wrote: Sorry I must have given the wrong explanation Ah ok so the firmware is NOT user changeable then? |
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slychiu Administrator
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You can upgrading firmware on the UCM only to the same Type, eg GSM to GSM, USB/ETH to USB/ETH. It is not possible to upgrade firmware to a different type |
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idheath Member
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Thanks for the clarification. |