Specialized e-bikes utilize control cables with a braided wire construction that exhibit a lower tolerance for mechanical stress and extended vibration compared to more industrial durable options. These cables, specifically those associated with the handlebar-mounted remote buttons, are susceptible to fatigue-induced failure due to their fine gauge and hard braided design. This can manifest as button malfunction after a period of sustained use, as experienced in my case after two to three years of riding.

And now the sad part of the story… Replacement part price. For 130 euros, those buttons better come pre-attached to a small gold-plated unicorn. Four buttons? Absolutely criminal!

Disassembly:

1. Housing Access: The remote enclosure utilizes a sonic welding technique, essentially creating a permanent closure between the two halves. Destructive disassembly is required. A thin, flat-head screwdriver can be used to carefully pry open the housing seam, but caution is necessary to avoid damaging the internal flexible printed circuit board (FPCB).
2. Cable Removal: Once the housing is breached, the control cable can be severed near the entry point. This allows for the complete removal of the remote unit.
3. Sealant Removal: The remaining challenge lies in the removal of the silicone sealant. This process requires meticulous cleaning with a sharp tool to scrape away the adhesive from the wires and FPCB. Special attention should be paid to the vicinity of the soldering pads on the circuit board, as these delicate components are susceptible to damage from excessive force.

The pinout:

1 = “S”, 2 = “+”, 3 = “-“, 4 = Foot, 5 = Common

Light Emitting Dance shades – general purpose party accessory.

LED Shades v0.3

About this project

I believe many young adults like to party and with the rapidly growing EDM community a lot of people attend parties with electronic music. I am one of them and you can probably tell where I got the idea to make the LED shades. Projects like this one don’t just keep me occupied in my free time but are also designed to broaden my knowledge in electronics and programming. Continue reading ‘LED shades’ »

Ethernet PHY is required in every microcontroller application which uses ethernet interface. It consists of RJ45 connector, transformers and PHY controller, which is analog circuit – interface between transformers and ethernet controller in microcontroller.

Circuit is divided in two PCB to keep it simple and single-sided. It connects via 20 pads (2,54mm raster) in dual row. Ethernet cables are usually stiff.  Dual-in-line style of this module provides better mechanical rigidity.

Universal ethernet PHY module

Continue reading ‘Universal ethernet PHY’ »