The smallest esp32 module (so far…)

Some months ago, Espressif announced the production of a new chip, named ESP32-PICO-D4. It’s a complete SiP (System in Package), that is a chip which integrates the esp32 microcontroller, a 4Mbit flash memory, a crystal oscillator, filter capacitors and RF matching links. The chip datasheet is available on the official website. Using this chip, it’s possible to create very small modules. I…

ESP32, PlatformIO

PlatformIO is an opensource ecosystem (as it’s defined in the homepage of the project) to develop IoT projects. The heart of the platform is a software component named PlatformIO Core. This component includes: [checklist] a cross-platform compiler a libraries and dependences manager a serial monitor [/checklist] PlatformIO Core is developed in Python and therefore it can run on…

My new third hand

I recently brought from Banggood a support for having a third hand during soldering operations… the support is made by an aluminum base and three arms which end with a crocodile clamp with insulating sheath: The assembly is very simple, the arms must be screwed on the base: In general this support is very useful; the arms are very well…

JQ6500, “flashdata error”

After having published my previous posts about the JQ6500 module, some readers wrote me about an error the MusicDownload.exe application shows when they click on the upload button to store the mp3 files in the flash memory. The error is flashdata error, have not define program mode in flashdata.ini!! It seems that the application is…