I said they replied to my e-mail(s). I don’t think telling me to use a contact form or forum was a great use of your work time, nor your anecdotes about how “Far Eastern suppliers” behave or RF Solutions issues.
Distributors databases aren’t perfect but given their regulatory responsibilities as major importers they’re generally pretty good. When three independent distributers say the E5 module is not RoHS compliant and no mention of RoHS is made in the original company website or documentation, honestly, why are you digging your heals in here?
That’s very disingenuous to cut-off the rest of my sentence in your quote, when the full line was:
The link I provided to justify my concern clearly states “All non-RoHS products cannot have the CE Marking”. I am not just “randomly diss’ing vendors” and don’t know why you having such an issue with me pointing this out.
If you want to give Seeed all your love you crack on, but my company requires base evidence for compliance, which is found quickly and easily for most reputable products.
Due diligence is not about giving the benefit of the doubt. I don’t understand why you’re so passionate about doing so, nor why you are so clearly very angry with my posts.
If the manufacturer or importer puts a CE-mark on a device, this means that this device fullfills all relevant requirements of all relevant European Directives. This device can be put on the market.
But who is responsible, that the requirements are fullfilled? If the manufacturer who puts the CE-sign on the device is within the EU, he is responsible. But if you import a device from outside of the European Market and put it on the market, you are responsible that all relevant requirements are fullfilled. This is independent of a CE-mark issued by the (e.g. Asian) manufacturer.
You have to issue the Declaration of Conformity and put the CE-mark on your (new) device.
As already said, the CE-mark can be based on a self-declaration. In most cases there is no need to involve a (independent and competent=accredited) test-lab.
But the only thing you should rely on is a test-report of an accredited test-laboratory.
One of the worst examples are power-supplies that neither fullfill the requirements of the LVD (electrical safety) nor of the EMC-directive. If you import these power-supplies from Asia and sell them (as part of your device) in the EU you have the full responsibility for all accidents that may happen because of devices not fullfilling the requirements for electrical safety.
One rabbit hole with CE, is the assumption that there is an exemption for personnel or DIY stuff since the RED guide states that CE is required for all stuff ‘put on the market’ but that there is this exemption for personal stuff.
However when you cross check the more complete Blue guide, you will find that CE is required for all stuff ‘put into service’ and there is no personnel use exemption.
Thanks for the suggestion.
No mention of RoHS for the module nor the development board though.
I’d be a little concerned about the expected supply/support life of this one too.
Hi
We had been using the ABZ module and had to make a switch to Murata’s 1SJ module (at the last minute due to availability issues. It was a redesign effort but not too bad. Murata provides patches so that ABZ based ST’s SDK can be upgraded to support this module (but only for specific versions of the SDK).
Thanks for suggesting these modules; I’d not heard of them before.
Their certification is well presented and it’s great to see a company who cares about such things!
Since they’re based on Nordic chipsets and come with their own base boards it would require a major redesign of both our hardware and software to accommodate them in the current project. Still, I’ve bookmarked them for potential future use.
Only one of them - RAK are MCU tarts - do one of everything - including the RP2040 now!
The RAK4600 is a nRF52832 module, the RAK4260 is Microchip SAMR34, the RAK4270 is STM32L071 + SX1262 and the RAK3172 is STM32WL55.
All of them available as SiP like this:
And for the record, because Google indexes and presents results from this forum as a priority so it’s only fair to be accurate, because we all know what a short temper I have , the dnt-TRX-ST1 is fully CE compliant with RoHS. Not sure why they’d go EoL in short order, but with the current supply chain issues I’ve reworked most of our base boards so that I can swap out the radio - costs a bit more on PCB real-estate but saves so much time on sourcing.
Ah yes, my apologies (I just checked-out the first one mentioned, the RAK4631) - I hadn’t appreciated the vast range to choose from!
The RAK4270 looks promising. It’s a shame the RAK3172 (based on the STM32WLE5CC) doesn’t have a tick on the RoHS but the RK4270 would at least be the same as our present setup.
I’d expect so given they’re a German company (I think) but as with all these things my concern is I couldn’t find that written anywhere (and as they don’t seem to be available through standard distributers couldn’t check there). Can you provide a link to their RoHS confirmation?
This would be great and nowadays seems a sensible idea. The problem is we currently use the CMWX1ZZABZ to perform many other actions other than just acting as a modem (it reads the GPS and IMU sensors and communicates with the main processor with a custom protocol). We could add another intermediate microcontroller to do this and literally just use the lora module as a modem, but it’ll be a significant waste of space and resource given it all works on the single module at the moment. I guess compromise is needed.
Wow, they’ve sneaked that one in since I was last on their website checking out the ABZ. The 1SJ seems like an almost perfect replacement (minimal changes). The upgraded SX1262 is good.
Stock seems to be OK at the moment for small quantities. I’ve ordered a bunch of eval kits.
I can’t believe I missed this one, thanks very much!
Given all the stuff RAK make & sell in the EU, I’d be very surprised if they’d gone with lead based soldering for just that one product. Much much more likely they’d forgotten to put the info up on the website. You could email them to check in on it.
The RAK4270 is somewhat output pin constrained, no where near the same as the ABZ but OK for a simple I2C or just acting as an AT modem application.
Then why aren’t they all ticked for RoHS as soon as they’re added to the table? The RoHS box is unticked. They’re literally saying that module is not RoHS compliant. Again with the benefit of the doubt over evidence, to the extent that you really want to call people out on not doing likewise.
I wasn’t keen about anything, I can touch type, maybe the verbosity makes it seem like I slave over posts for hours - I’m just saying I know that they are RoHS compliant but no, I can’t give you a link - there’s nothing particularly odd about that, not all information is at the end of a public link.
And in that respect, Murata have a loverly closed door policy - you can’t get the tech details until you’ve got a code for them to manually authorise so you have to buy the product before you know what it can actually do. And before you ask, no links, sharing the data sheet is prohibited. Footprint is different but it’s pretty close to the ABZ.
The absence of the tick doesn’t mean it isn’t - a cross would imply that it isn’t.
You asked for alternatives to the STM32WL, as a matter of course I end up with most dev/eval kits so I know what’s around, but I can’t fix vendors websites for you - you’ll have to ask them to fill in the blanks - they are mostly staffed by humans who are fallible, so assuming the worst is painting yourself in to a corner.
just plugging-in here with another RF module suggestion which uses STM32WL in its core and it’s called MAMWLE-C1.
It is currently available on Mouser, but a bit on the pricey side compared to LoRa-E5 and RAK3172.
I’ve designed a simple Feather breakout for it which can be used as a reference design. Let me know if you need more details on that.
If you scan through the thread above you’ll see that the OP needs links on the website for the CE & RoHS certification, that was the crux of the matter.
Thanks for highlighting this Nick;
A quick check on the mouser link and the company’s website (MAMWLExx Module – Move Solutions) shows both RoHS and CE compliance so all good here.
, the dnt-TRX-ST1 is fully CE compliant with RoHS. Not sure why they’d go EoL in short order, but with the current supply chain issues I’ve reworked most of our base boards so that I can swap out the radio - costs a bit more on PCB real-estate but saves so much time on sourcing.