2023-10-02 10:28 AM
Hi
i have this device
Someone can give me some info about how to access it from windows 10?
thanks very much in advance.
2023-10-03 09:46 AM
They've chose not to implement USB, but rather use the standard connector as a means to power (say USB charger), and provide serial wiring for an MCU, rather than the D+/D- connectivity for USB.
No one here is highly invested in this part/board, you'll need to analyze the board from a electrical/software standpoint, and it's usability in your desired application. Perhaps there is someone in your team that has a more in-depth understanding of MCU's and interfacing, who might be able to assist or direct you?
2023-10-03 10:03 AM
Hi again. Finally i solved the situation. I do not use the integrated USB port in the card because i do not have a wire in this moment.
But i have the wire on the picture attached. Once connected to the board, all is working.
Thanks very much for your support. You put me in the right direction.
BTW, i will now look for the possibility to connect the device to a wifi. any idea?
2023-10-03 10:19 AM
You could use a PI Pico W for USB-To-CMOS Serial and for a WiFi connection
https://www.raspberrypi.com/news/raspberry-pi-pico-w-your-6-iot-platform/
2023-10-03 12:40 PM
thanks for the response.
another question: if i have about 50 devices like this one for qr codes, how can i use only one com port in the pc and communicate with the 50 devices? is there any way to avoid to have 50 com ports on the pc? thanks again in advance
2023-10-03 01:21 PM
what about to use this device connected directly to the qr module? can i use the wifi as input and send to the qr module with ttl?
2023-10-03 01:51 PM
Possibly, but just as a serial port, you'll need to review how you might communicate with one or many. Perhaps by a broadcast UDP.
I think the SW development with the Arduino IDE might still be easier via the RPi Nano W. Powering the display via USB Charger into RPi. For the 50-up perhaps via specific addressing, or broadcast UDP socket connections from PC.
2023-10-03 11:14 PM
If i can use the Wifi module connected to the qr module, the communication is not a problem once the wifi module has an IP address.