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Homemade JLINK interface adapter board

Overview

The J-Link adapter board mainly provides 5-pin, 6-pin, and 10-pin connectors. It also includes a UART and external power supply. It's relatively simple but practical.

One issue arose during testing: I initially intended to bring out the 5V output, but it turned out to be only 3.3V. Otherwise, there were no problems.

PDF_JLINK Interface Adapter Board (DIY) .zip

Custom-made Altium JLINK interface adapter board. (zip)

Homemade PADS_JLINK interface adapter board. (zip)

Homemade BOM_JLINK interface adapter board.xlsx

96016

ESP8525 controls BL9010 to collect 10-channel power data.

It can be integrated with the HomeAsistant smart home platform to collect data from 10 energy meters, sharing one voltage channel and connecting it to 10 current channels to generate 10 energy meter readings.

This design is based on polisher's [Hardware DIY] "DIY ESPhome: Homemade Multi-Channel WiFi Power Meter for Beginners". The original hardware was for 6 channels. This design was adjusted and rearranged, with external components modified according to the Belling BL0910 PDF, and register parameters modified as described in the original. It was prototyped and successfully tested at JLCPCB to achieve 10-channel power acquisition. Components meet Belling's accuracy and parameter requirements. The WiFi chip used is the ESP8285. Status indicator lights and overcurrent indicator lights for each channel were added for easier monitoring of RXD and TXD transmission/reception. Other issues can be found in the original author's documentation.

BL0910.zip

EspHome.docx

PDF_ESP8525 Controlling BL9010 to Collect 10 Channels of Power Data.zip

Altium_ESP8525 controls BL9010 to collect 10-channel power data. (zip file)

PADS_ESP8525 controls BL9010 to collect 10-channel power data. (zip file)

BOM_ESP8525 controls BL9010 to collect 10-channel power data.xlsx

96017

electronic

Design Files

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Update:2026-03-28 12:58:00

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