ESC Telemetry for T-Motors Thunder 300A 24s

ArduCopter Copter 4.3
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1

Hi Everyone,
I am trying to read the UART data postback of T-Motors Thunder 300A 24s ESC. Firstly, I successfully read the data from a single ESC to my PC using FTDI cable on RealTerm. However, I cannot read the data through CubeOrange on Mission Planner. I have connected the Telemetry lines of ESC to GPS1 (Serial 4) of CubeOrange. This is the data package format in the datasheet:
Data package format：SPD:XXXX TMOS:XXXX TMOT:XXXX TMCX:XXXXXXXXXXXXCURI:XXXX VOLT:XXXX PWAC:XXXX SYS:XXXXXXXXXXXX
DBG:XXXXXXXXXXXX。
SPD:XXXX RPM
TMOS:XXXX ESC temperature(℃)。
TMOT:XXXX Motor temperature(℃，retention data)。
TMCX:XXXXXXXXXXXX (debug retention data)。
CURI:XXXX Motor current( X 0.01 A) 。
VOLT:XXXX supply voltage( X 0.01 V) 。
PWAC:XXXX Power Ripple(ebug retention data) 。
SYS:XXXXXXXXXXXX (ebug retention data) 。
DBG:XXXXXXXXXXXX (ebug retention data) 。

Here is the datasheet for the ESC:
thunder_300a_esc_manual.pdf (102.5 KB)

Is there any way to read the data through Mission Planner, or do I have to make a driver specifically for reading the data?

2

You need ArduCopter >= 4.5.0 and you need to use the Hobbywing/T-Motor telemetry lua script.

3

Thanks for the reply. The data format package for Hobbywing is different than that of T-Motors. Will this PR work for T-motors?

4

Read the PR carefully, it DOES work for both. It IS the same format.

5

It does work for T-Motors, but this Lua script is to be used with a Datalink V2. What if I have to take data from a single ESC, or let’s say without the Datalink V2?

6

Then there is hobbywing support, but not T-Motor support AFAIK.

7

Thanks a lot for the help. I will try some alternative methods then, for T-Motor Thunder ESC.

8

Hi all,
I am using also the T-Motor Thunder 300A 24S ESC and actually wondering if I can send information through the cube orange or if I have to use a specific datalink.
Did you get chance to find a solution ?

Thank you,

9

T-Motor Datalink v2 hardware is now supported by ArduPilot >= 4.5.1

10

Thank you for your reply.
However, it seems that T-Motor Datalink V2 is only for ESC Alpha, but not Thunder.

11

Hi Bruno,
So far, I have retrieved data from a single Thunder ESC and displayed it in Mission Planner. To do this, I modified the Hobbywing Datalink lua script (link provided in this topic by @amilcarlucas).
Now I have to combine the data from all four ESCs.

12

Hi Scautinaus,

Ok, thank you.
Do you plan to purchase the Hobbywing datalink and cable it with your 4 ESC Thunder ?
https://fr.aliexpress.com/item/1005005363841376.html

13

Hi @Scautinaus,
Could you share us the lua scprict which you recieved data from Thunder ESC?

14

Hi Everyone
I had a similar problem with the T-Motors 200A 24S ESC. I tried to download the lua script but I didn’t get any data. I also tried getting data through the FTDI cable to the Putty terminal and again got nothing.
What could be another problem?
Ardupilot version 4.5.6. connected telemetry lines to Telem 2 CubeOrange

15

Hi Everyone,

I was able to get data from the T-Motors Thunder 300A 24S ESCs, by modifying the Hobbywing telemetry lua script.

Here is the lua script that worked for me: Thunder ESC Telemetry lua script

MP_Data_Success_with_RPM
MP_Data_Success_with_RPM1917×1028 275 KB

3 Likes
16

Did you try to receive data from ESC just throw USB-UART converter directly in PC (PuTTy)? I tried and got nothing.

Do you think that, if I will connect ESC into CubeOrange telem port and use your script, it will work properly?

17

Great Work @Scautinaus !
I was trying to get the same with CAN-BUS as per T-Motor support, and got nothing useful from them.
I just want to make sure how I can solve my issue with your awesome work.
I need to connect the 3 wire cable (yellow,green,gray) to the datalink , and connect it to a free UART ?
Thanks in advance for your help.!