I have 20 Nordic Thingy 91 that I am using for a project to collect temperature, humidity, and air quality. I had them programmed so that they can log the info on google sheets. Unfortunately, when I tried plugging them in to charge, they do not charge. I recharged them with the switch on 'on.' I don't know if it is the recharging stations or if I need to do something else with the thingys. What can I do to get them recharging? I bought two recharging stations and 20 micro USB cables. I provided links to the products below.
micro usb - www.amazon.com/.../ref=ox_sc_act_title_1