Yes the USB is required for the touch interface, but when not using touch a single (HDMI) cable can often be handy in temporary setups. Less clutter on the desk and the display stays into position more easily.
It has been a while since I tried the touch interface on my 5" HDMI display (use it for general purposes).
I found it not very usable for common Raspbian desktop tasks so never use it for that.
(IIRC some discrepancy or impossibility with double-clicks and/or tap-and-hold for opening context menu’s. It did not do what I preferred it to do / common behavior, this was similar when trying it as a secondary display on a Windows PC).
I want to ‘convert’ it into an input device… displaying nice buttons and graphs ,it’s indeed to small to use it as a ‘normal’ hdmi screen (I have that with '7 to) this one should work in a mobile device one day …
2x potmeter connected to analog input
2x pushbuttons
4x leds (2x red, 2x green)
1x Dallas one wire temperature sensor (you need something real there)
4x Grove connector.
Using the shield library you can generate any value between preset limits by rotating the potentiometer. This is to simulate any sensor students require. Not on the picture but comes with it: a library to generate signals like sine, cosine, rectangle, square, and sawtooth shaped signals.
Great fun to make because it makes you think about LoRaWAN usage.
wanted to say that GROVE IS NOT EQUAL to JST (!=) and I’ve made some mistakes ordering from China in the past, they look equal… even the size, but won’t fit
@BoRRoZ, I came to a similar conclusion. Ended up making I2C connection on my nodes with something similar but not exactly the same as Grove. Prefer to use a connector which is at least dual sourced to ensure long term availability.
Grove system is a modular, standardized connector prototyping system, if you use grove you can easily connect many different devices through that same connector.
That’s different for a production PCB were JST is cheaper in quantities and don’t have to switch sensors.
) I buy them locally
