[Bug]: T114 can't send messages longer than 47 chars #4723
Comments
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Does it forward packets normally or are certain length messages not forwarded? |
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This issue has been mentioned on Meshtastic. There might be relevant details there: https://meshtastic.discourse.group/t/t114-fails-to-send-messages-above-certain-length/14719/1 |
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Can you try setting a lower transmit power (e.g. 3 dBm) and see if the issue persists? I'm trying to figure out if it's a hardware issue (e.g. unstable power supply or EMC issues) or something else. |
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Lowering the transmit power to 3 dbm did the trick! it transmitted for me from one T114 to another (DM), longfast. |
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exact same behaviour here - ok below 8db |
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I tried going back to earlier firmware 2.4.xxx, no improvement |
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I am on 2.5 most recent release. If this issue is hardware based its bad, really bad!! because how I see it now every T114 so far is affected. |
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My T114 is running 2.4.2 and I just sent a 71 character message to LongFast. Received successfully on my T-Deck (2.4.2). |
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Also tested to send from my T114 ( stock 27dbm) to my Heltec V3 a much longer message then 71 (150) successfully 3 times out of 4. #longfast DM |
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Today at 27dBm I can send around 60 character messages, up to 30 characters no problem after that I had to resend a couple of messages. At 3dBm I'm managing to send 200 character messages (stopped there as I wasn't sure what the limit is) and they've been getting through no problem. |
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can send 144-char (base64 encoded, and 107-char decoded) messages with |
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Thinking out loud... Given this symptom combined with some of the sporadic BLE issues, I wonder if we're looking at some hardware level issues with the LDO converter not being able to supply enough current to the MCU + peripherals under certain loads. |
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Would a big enough capacitor at the LDO be able to buffer that? |
Potentially. If someone is willing to sacrifice hardware modifications in the name of science, we can find out. 😅 |
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Q) Does everyone above have the version with a screen? GPS? |
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Screen+ GPS and Screen no GPS but lots of other added stuff like vibra, buzzer ( both fired by a mosfet feeded directly from the 3.3volt rail) and a smd LED but that barely falls into weight as that stuff only fires up when receiving a message. |
Screen and GPS. |
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Screen and GPS for me too.
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Q) Does everyone above have the version with a screen? GPS?
Screen and GPS.
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I would have suspected the same thing, but I've got it on the scope right now though and I can't measure any significant dip in voltage when transmitting. This was with screen only, powered by USB. I'll connect the GPS and see if it changes. Update: no change with GPS. Drawing ~150mA from 5V supply when transmitting. To my untrained eye, the 3.3V looks pretty solid, at least on my device. Update 2: I'm actually having trouble replicating the issue at all, so my report might not be that helpful. Long DM's seem to be going through fine for me right now. Could be good to get some observations instead from devices which are struggling. This is with tonight's master (a967dd5) |
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I've managed to reproduce on a T114 no GPS and no screen. So it looks like those are not factors. Current master (2024-09-18). logs: |
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@fifieldt Can you help break down what your debug logs here demonstrate? I'm a software dev, though new to Meshtastic as of a week. Aiming to run some tests at various dBm levels between a t114 and a control Wisblock node. Would love insight into what logs are indicating that could benefit my analysis outside of just looking at whether the message was received by the control node. Thanks! |
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Hi @skylerwshaw , the only real interesting messages are the last 5. We got a packet from the phone, plan to send it to lora channel 0, sent a 255 byte payload, then died after cleaning up and adding it to our list of sent packets. The half-printed line where it dies is from code that hasn't been changed in >6 months, so that's probably not the root of the problem. |
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Hello dear community, it is definitely not a hardware issue. I have fixed it on 3 devices. How? nrf erase multiple times, firmware 2.5, then back to 2.4.2 then back to 2.5, deleted again and back to 2.4.2 and now I can send the full number of characters :) |
Couldn't get your method to work for me unfortunately although it did perform a little better than it has been. |
That sounds wild, there must be a better solution, thats like rolling some dice and hoping to get a pair at some point?? |
Sounds like some sort of timing issue? My Heltec T114 has the same problem. |
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Seems to be all over the place, I was not able to send larger messages above 7dBm with both of my T114s. Lowering dBm was in direct relation of being able to send bigger messages. The lower the dBm the more successful I was with bigger messages. Once I upped the dBm again step by step, message length decreased ( for a successful delivery) |
I did actually e-mail the address in the earlier post for confirmation, but I expect they are quite busy handling other queries. Since e-mailing, they updated their main site, but AliExpress is much cheaper for me (I don't have a 20% discount code - first order). |
I am terribly sorry as I got it wrong I guess and ask for forgiveness bows his head down in shame |
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I receive a reply to my e-mail... "Please the T114 is out of stock, the V2 will be available in this Month. The product has also now been marked as unavailable on AliExpress. I assume that's because AliExpress expects sellers to ship within a certain time. I guess I'm waiting. |
WTF are you on about? don't put words in my mouth, I never said anything of the sort, I buy from there, I never said anything about being "ashamed" I'm referring to the 20% discount thing instead of a full replacement, as I have a few I purchased from Aliexpress. "Ashamed" has a totally different meaning to a "shame", I was expressing my disappointment as I may not get my units replaced. |
I guess I got it wrong then, sorry for that, but you never said it in the context like you explained it now! the original message sounds nothing alike, you have to write things out how you mean it, I cant read thoughts man xD Also you totally gonna get them replaced! no matter if bought from heltec directly, Heltec on Ali or any other vendor selling the T114 on Ali or other platforms. the 20% discount is just something additional for the trouble caused with the defective devices. |
All good, and it looks like I misunderstood them, I might contact the seller on Ali then, I wasn't going to if I was only getting 20% discount off the replacement :) |
Na man I am absolutely certain you will see some shiny new Rev 2 boards being thrown through your door soon ;) I also contacted the reseller I got my boards from on ali and now its just about waiting until they get shipped. The Only Issue I have is that I already built 8 nodes. 4 of them I havent tested yet, its like with schmidts cat, as long you dont check for known issues it works and also not xD. I put so many hours in the very complex builds and just thinking about that they suffer the same issue...........well I guess I am just gonna use them for "Display" options in my glass cabinet. |
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Hmmm, does Heltec support act weird with others as well? Ordered from the official Aliexpress store, sent three e-mails with order id to [email protected] and got this as a response 0_o |
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at least you get an answer ........ |
I have no reply yet. One email sent on the 10th and then resent today. I have however had emails from my personal domain get lost in a spam folder so I'll try sending from my gmail address next if this doesn't trigger a response. |
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I emailed them my order numbers on the 10th and got a reply the next day. |
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Much respect for Heltec. Working with the customers, and being so transparent.❤️ |
contact them directly over the messenger on ali express that includes your order , so did I and had a answer the next day. |
Just looked. Instead of replying to the email they responded on AliExpress for me. |
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I received my reply via AliExpress chat too. |
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This issue has been mentioned on Meshtastic. There might be relevant details there: https://meshtastic.discourse.group/t/meshtastic-scotland/11479/248 |
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Since the hardware is being fixed with a new revision, will the board be added back to the web flasher and OTA update on the app? |
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@joan7770 yes indeed - developers are just waiting to receive a board to do some final testing before that happens. |
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Replacement going well on AliExpress chat. Thanks Heltec for not sucking! |
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I've also bought their new T114 v2. Hope everything goes well. |
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I can confirm that they replied to an email via AliExpress message, ~14 hours after the email. |
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The response I received was that they would send it out in sequential order at the end of the month |
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I contacted them through Aliexpress messaging and they replied same day with "Your order has been registered. We will ship it to you after the new version is put on the shelves. Please wait patiently" |
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Ordered 3 recieved 4, the store packed in my replacement for the v1 I had ordered previously
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Quick update, Bluetooth is a lot more solid, and long messages are passing through |
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@guryonblaze, who was replacing your boards? Here's to hoping Muzi and other vendors receive them soon as well! Thanks for the update. |
A store on Aliexpress (Moonmall Store), was really impressed they packed the replacement with my order, but guess it makes sense as it saves shipping. |
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Just got the T114 v2. Really impressive stuff. |
You mean because it works now? Or what exactly is impressive? Where you able to do some testing? How about the results? |
and others
Category
Other
Hardware
Heltec Mesh Node T114
Firmware Version
2.4.3.91d6612
Description
Messages above 47 characters cannot be sent. Other are reporting that the message length that causes failure to send is variable https://www.reddit.com/r/meshtastic/comments/1fhc47k/heltec_t114_message_sending_bugfault
Relevant log output
No response
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