Versatile Link Fiber-Optic Receiver

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https://www.electronics-lab.com/project/versatile-link-fiber-optic-receiver/

HBBR-2521Z Fiber Link is able to receive TTL data up to 5Mbaud@53meter distance. It uses a 5V supply and it has High EMI immunity and voltage isolation.

Versatile Link Fiber-Optic Transmitter

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https://www.electronics-lab.com/project/versatile-link-fiber-optic-transmitter/

HBBR-1521Z Fiber Link is able to transmit TTL data up to 5Mbaud@53meter distance. It uses a 5V supply, 660nm LED and it has High EMI immunity and voltage isolation.

Laser distance sensor with OLED display and RP2040

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https://www.electronics-lab.com/project/laser-distance-sensor-with-oled-display-and-rp2040/

This article implements a laser distance sensor with OLED display and RP2040, using the VL53L0x laser distance sensor. We will use a really small 0.49-inch OLED display that communicates with RP2040 via I2C. By distance, I mean we will be able to measure how far in millimeters an object is from our VL53L0x laser sensor. […]

Adjustable Constant Current LASER Diode/LED driver

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https://www.electronics-lab.com/project/adjustable-constant-current-laser-diode-led-driver/

I was testing a couple of low-cost laser diodes that come from china and I was wondering why those diodes don’t have any protection/driver circuitry. Those diodes come with a simple series resistor for current control which is not a good idea nor stable. Laser diodes are harmful and should have some sort of constant […]