Electronics Design

Introduction to Hearing Aids

Introduction to Hearing Aids is a good introduction to technology inside hearing aids.  The two basic types of technology for hearing aids are analog and digital. Analog hearing aids process electrical sound in the analog domain; the more recent digital hearing aids process electrical sound in the digital domain. The earliest analog hearing aids simply

FPGA boards under $100

Nowadays you can find many low-cost microcontroller devboards (starting from just few dollars/euros). More recently, we’ve seen ARM Cortex kits for $10-$50, the flowering of the whole Arduino ecosystem, and of course, the Raspberry Pi. It’s microcontroller heaven with very many dev boards available. You you want more performance, there is a wide selection of