11-09-2023, 09:32 AM
The uart method to flash is only needed when the wifi method fails. I plan to test the uart flashing method shown in Johns vids on my matek R24 P6 rxs, as I tried to update their firmware from elrs 3.0.1 to elrs 3.3 using Configurator 1.6.0 and selecting target R24-P PWM, using the wifi method, and I failed. When I look at the rx in wifi (in browser at 10.0.0.1) it says I am on "Generic ESP8285 + 6xPWM 2.4Ghz RX and 3.0.1".
When I plug in the betafpv recovery dongle on my mac, in the configurator "manual serial device selection field" I get a choice pop up called /dev/tty.usbserial-0001, and the dongle lights up. So I know the serial connection to the dongle is working.
[I also have another dongle, 018-USB-PL2303HX (x1) - USB to TTL Serial UART RS232 Adaptor (PL2303TA) from CoreElectronics. When plugged in my mac it shows up in the manual serial device selection field. While the Betafpv dongle may only work for rxs, the PL2303TA dongle may work on tx modules also.]
To work out where to plug the 4 dongle leads in on the R24-P6 (they are +, -, tx and rx), here is another good video by John. The leads are labelled at the dongle end and also on the P6 the pwm signal pins are labelled so you can find rx and rx. This video at 6 min 10 sec shows how the tx (yellow wire) on the dongle goes to the rx signal pin 3, and the rx (blue wire) on the dongle goes to the tx signal pin 2.
https://www.youtube.com/watch?v=AH6e-ItZCo0&t=157s
The other video above on the ER4 (link in first post of this thread) also shows how the tx on the dongle goes to the rx signal pin 3, and the rx on the dongle goes to the tx signal pin 2.
So the new Radiomaster rxs (ER4 and ER6) differ from each other. The ER4 works like the matek rxs, where you simply plug the dongle leads in to the PWM pins. But the ER6 requires a special lead to be made up, to allow a dongle connection for the uart flash. Hopefully a uart flash will not be needed, however I plan to make this lead just in case, and I ordered the kit of the parts as John listed under the ER6 video (link in first post of this thread), and he provides detailed instructions.
I would be interested to hear of any experiences with the uart method and Configurator v1.6
When I plug in the betafpv recovery dongle on my mac, in the configurator "manual serial device selection field" I get a choice pop up called /dev/tty.usbserial-0001, and the dongle lights up. So I know the serial connection to the dongle is working.
[I also have another dongle, 018-USB-PL2303HX (x1) - USB to TTL Serial UART RS232 Adaptor (PL2303TA) from CoreElectronics. When plugged in my mac it shows up in the manual serial device selection field. While the Betafpv dongle may only work for rxs, the PL2303TA dongle may work on tx modules also.]
To work out where to plug the 4 dongle leads in on the R24-P6 (they are +, -, tx and rx), here is another good video by John. The leads are labelled at the dongle end and also on the P6 the pwm signal pins are labelled so you can find rx and rx. This video at 6 min 10 sec shows how the tx (yellow wire) on the dongle goes to the rx signal pin 3, and the rx (blue wire) on the dongle goes to the tx signal pin 2.
https://www.youtube.com/watch?v=AH6e-ItZCo0&t=157s
The other video above on the ER4 (link in first post of this thread) also shows how the tx on the dongle goes to the rx signal pin 3, and the rx on the dongle goes to the tx signal pin 2.
So the new Radiomaster rxs (ER4 and ER6) differ from each other. The ER4 works like the matek rxs, where you simply plug the dongle leads in to the PWM pins. But the ER6 requires a special lead to be made up, to allow a dongle connection for the uart flash. Hopefully a uart flash will not be needed, however I plan to make this lead just in case, and I ordered the kit of the parts as John listed under the ER6 video (link in first post of this thread), and he provides detailed instructions.
I would be interested to hear of any experiences with the uart method and Configurator v1.6