next.module

• ESP32S3 is flashed and debugged via USB-C. No debuggers and USB-UART are needed.
• RGB-LEDs are working. The implementation of the WS2812 chip protocol is hardware-based, using SPI or RMT. Everything is already included in the ESP-IDF and works great.
• The green LED 0603 (powered by 3.3V) is too dim.
• DC-DC based on TPS563201DDCR works well, but needs to be tested at currents up to 1.5-2 A.
• Intermodule connectors are convenient. Connect-disconnect quite easily, do not bend when removed. The only thing is that the pins are too long. I will shorten it in the prototypes.

next.module prototype testing started!

A very simple and cheap debugging module with 32 LEDs displaying the status of the pins on the intermodule interface and the presence of supply voltages

Module with DAC for stereo audio output to 3.5" analog jack

Module with RTC, battery and EEPROM

This schematic diagram explains how multiple PSU modules are connected in one device

This module allows you to power your device with AC power source.

A wide range of input voltages allows this module to be used with 115V or 230V power outlets.

This module allows you to power your device using a common DC power source.

The input voltage range is from 7 to 40 V.

DIO16 module is a simple 16-channel GPIO expander on I2C bus.
Logic levels - 3.3V
LED status indicators for each input/output
ESD protection
Up to 16 such modules can be connected to one device with a total number of GPIOs - 256 pcs