tBK9Ar

FD568Z battery

Overview

The attached file is the 3D file of the casing: it has been verified through JLCPCB 3D prototyping. There are some minor imperfections that require manual adjustments.
The accompanying PCB is a Type-C dual-lithium charging circuit with two series equalizers; those not needed can be left unsoldered.
Only the surface treatment is required; the mounting is not.

21700-cover.STEP

21700-base (1).STEP

PDF_FD568Z Battery.zip

Altium_FD568Z battery.zip

PADS_FD568Z battery.zip

BOM_FD568Z Battery.xlsx

93929

Low-cost daplink

Extremely low-cost DAPLINK, under 5 yuan. Besides the chip, it only requires soldering a 16-pin Type-C port, external capacitors, resistors, and LEDs. Use it with the included firmware.

The hardware and firmware were modified based on the legendary programmer's work
, with changes to the PCB shape and layout. The pin order was changed to the common DAPLINK order, making it ready to use immediately. It has been verified and is of high quality.
When using it, first short the two solder pads (solder is optional). Use the official WCH flashing tool to flash the firmware. After the first firmware flash, the chip will enter a protected state. To flash again, you need to click to unlock the chip.

CH32V203_DAPLink_aa14c15.hex

ProProject_Low-cost daplink, onboard daplink, CH32V203_2024-07-04.epro

PDF_Low-cost daplink.zip

Altium_low-cost daplink.zip

PADS_Low-cost daplink.zip

BOM_Low-cost daplink.xlsx

93931

STM32F103RCT6 core board

I made a small-sized RCT6 core board for my own use. It's been verified and is safe to use.

The pinout is customized based on common DAPLINK connectors on the market, allowing for direct connection using a non-directional FC gray ribbon cable. Power and function indicator lights utilize 5050 tri-color RGB LEDs, achieving functionality while reducing size. It is compatible with my open-source DAPLINK.

ProProject_RCT6 Core Board_2024-07-04.epro

PDF_STM32F103RCT6 core board.zip

Altium_STM32F103RCT6 core board.zip

PADS_STM32F103RCT6 core board.zip

BOM_STM32F103RCT6 Core Board.xlsx

93932

electronic

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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