- A while back I modernized an old-school arcade that came with our house. I was running Windows 98 on a tower PC and a fat CRT monitor. I cut about 2’ off the back of the 7’ tall box, replaced the monster CRT with a flat LCD screen, replaced the...
- The eBike is controlled with a Raspberry Pi, which will be the topic of a later post. Here’s I’d like to discuss circuit board through which the Raspberry Pi manages all the hardware on the bike. The hardware features include: Headlights Tail Light Brake Light Brake Cutoff Ignition Power Up...
- As mentioned in the previous blog about BMS, I designed a PCB (printed circuit board) to accommodate the BQ76940 (monitoring chip) by TI (Texas Instruments). This board has served me well so far in multiple applications. Below is a picture of the BMS board fully populated. Components & Features MOSFETS...
- Goals Speed The key to speed with electric vehicles is voltage. The higher the voltage, the faster the motor can spin, for the most part. Although my BMS can handle 15 cells in series (54V), I found that 14 cells in series (50.4V) propels the bike plenty fast, faster than...
- My Brother Justin, recently purchased a used electric scooter, or more like a moped. Unfortunately, the battery pack in the scooter died shortly after the purchase and Justin was left without transportation. How sad. Fortunately, I had a pile of fresh 18650 cells along with my new BMS design. So...
