Controlling your World the Easy Way

At Daniel's suggestion, I replaced the two 0603 .1uf caps, C1 and C2 with 0805 47 uf ceramic caps. These caps are at regulator input and output, respectively. All tests were conducted with power supplied by an 8 volt Li-ion battery pack to Vin. Most tests were brief, since the 8 volt supply pushed t...

Thanks Daniel. As I stated, the modem problem isn't a show stopper for now. Someone in the esp32.com forum posted the method to disable the modem. I used that approach, but it doesn't work. As for the adc noise, I did the following: 1. resolder mounting tabs and leads on USB connector. 2. use shorte...

After visiting the esp32.com forum to find how to put the modem into sleep mode--and digging through some *.h files: ..... // typedef enum { // WIFI_PS_NONE, /**< No power save */ // WIFI_PS_MODEM, /**< Modem power save */ //} wifi_ps_type_t; esp_err_t wifistat; wifi_ps_type_t modemstate; // set mod...

I'm using the module mounted on the PCB. I don't use Arduino. All of my programs are in either 'c' or 'c++'. I've run the board on an external power supply and sent data to the browser via web socket to eliminate the USB as a problem, but the spikes are still there. I've also run with the radio disa...

I purchased a VROOM-32 from EzSBC on Ebay. So far, I have a web server with web socket implemented via FreeRTOS and am working on some data acquisition code. I'm using mainly ESP-IDF for development am debugging with printf statements to the terminal. Eventually, I will get the whole package into Ec...