Hello,
Just thought I would share the way I installed a push button momentary contact tactile switch to my TinySA.
By pushing the switch while turning on puts the SA in DFU mode.
There is no need to take the unit apart to short the Boot and Vcc pins every time you want to change the firmware.
You only have to take the SA apart once to install the switch.
Please refer to the photos I attached.
Next project will be to install a Bluetooth module just like in the NanoVNA H.
Then wait till someone programs the firmware with the Bluetooth commands. I do not do programming anymore.
The switch is protected from being accidentally activated by the rubber bumpers or feet on the bottom of the case.
I got the bumpers or feet at Walmart. The package of tactile switches were purchased on Ebay. The package consisted of a bunch of switches with various lengths of push buttons.
I used the 12 mm length shafts.
73's
Clyde Lambert KC7BJE?
Clyde Lambert
