First time building a drone, looking to get some feedback on my wiring diagram for the system before I commit to soldering everything since documentation on the v1.5 has been hard to find. Here’s my hardware:
Flight Controller: H743 Slim V1.5 Matek Systems
Frame: S500
Motors: 2212 920KV Brushless Motors
ESCs: Brushless 30A ESC 2-4S ESC with 5V 2A BEC
Telemetry: 915MHZ 3DR/HexTronik Radio Telemetry Kit
The battery voltage sense out of those power modules is scaled so it will not give you full battery voltage as an input to the Vbat pin of the flight controller. That is looking for full battery voltage. Typical use case is a 4-in-1 ESC which provides a pin for full battery voltage.
I don’t know about the rest of that wiring, too difficult to see and sort out.
I would suggest different ESC’s and GPS module.
Where did you come up with a V1.5 version of that?
Thanks for the quick response. What would you suggest for the ESCs and GPS instead? For the V1.5, I purchased the flight controller from ebay, and that is the version that is silkscreened on the board.
Any M10 based module that isn’t Beitian.
A 4-in1 ESC that is using Blheli-S or Bluejay firmware. And if it’s Blheli-S flash to Bluejay. I would say an AM32 ESC but you you must be buying the cheapest hardware available for a reason. The Matek board is good if it’s not a clone. They are at Rev4 for that board and even those are cloned.
This is what they say about the V3, an update to that one: H743-SLIM-V3 has been discontinued ! ALL brand new H743-SLIM-V3 on Aliexpress are counterfeit !
Poor performance and they don’t have Ublox receiver chips. M8030-KT from Unicore Communications (a Chinese GNSS chipset manufacturer). And you don’t want an M8N equivalent module anyway.
I see those Matek boards on eBay. Point your phone at the barcode and see where it takes you.
Actually Matek responded to my question immediately via email with this. Assuming it’s the same eBay seller:
It looks like the oldest version V1.0.
This version has been discontinued for more than 4 years.
Yes, I saw that noted on the Matek website product page. Buying from an authorized dealer would be wise but that page on their website is now non-functional.
Since the authorized dealer page is down, what sites would you recommend for obtaining authentic parts? For this build, looks like I need to upgrade to the v4, get a 4 in 1 esc, and probably replace the GPS with the MATEKSYS M10-5883 GNSS & Compass
It depends on where you are located. You may have trouble finding stock in that V4. A good alternative would be the TBS Lucid H7. I have both and am really impressed with the TBS board on a new build. Pyrodrone (CA supplier) has them.
To answer your other questions from the US you have several good domestic retailers.
Raceday Quads, GetFPV, ReadyMadeRC, Pyrodrone, Rotor Riot to name a few. The Matek GPS module is solid I have several. I also have a couple cheaper M10 modules that work “OK”.
