It is possible to do voice mod and SD card backup and restore of models so in case if you have shelved your tx then its time to bring them back to life.
Voice and backup demo
https://youtu.be/ixSAVQ5b7dU (https://youtu.be/ixSAVQ5b7dU)
Model backup and restore demo will be uploaded soon
Hi it good idea..
Do you have sound card module
Have built one with promini and sd card reader module
About 2 to 3 years ago I was interested in doing this so searched lot on internate and found that there is ready made sound card module called 9x sound card available but at that time it was out of stock and of course not in india and another option to upgrade i.e 9x extream board and sky9x board but they are also not available,
And then found a promini project on YouTube where he also installed rotary wheel for navigation switch.
But that was much complicated.
But you have done nice job.
I am planning to create a ready to use kit you just need to solder 9 wires (2+2+3+2).
If atleast 10 people agree for this then can create pcb decreasing the number of wires to be soldered to 2. PCB cost is arround 1700 for 10 units and components cost is around 1000 if sourced from India. so roughly 1200 per mod and it can include the frsky mod without opening the tx module.
So even if 2 of us agree then total is 3700 i.e per tx cost is 1850 but with 10 people cost comes down to 1170 on the upper side.