A supplier of electronic modules and components for makers, including adjustable power supplies, Bluetooth amplifiers, and development boards.
EC Buying is a provider of electronic components, modules, and tools catered to the DIY, hobbyist, and engineering communities. The brand offers a diverse catalog that includes CNC buck-boost DC voltage converters, Bluetooth audio amplifier boards (such as the ZK-502L), ESP32 development boards, and various sensor modules like human presence radar and temperature sensors.
EC Buying products are designed for prototyping, automation projects, and educational purposes, typically characterized by their modular design and compatibility with popular platforms like Arduino and ESP32. The brand primarily distributes its products through major online marketplaces.
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For most CNC keypad models like the SK150 or XY series, short press the 'V-SET' button, then rotate the encoder knob to select the desired voltage. Pressing the knob usually sets the value.
Most EC Buying development boards use standard USB-to-Serial chips. Depending on the specific model, you may need to download drivers for the CP210x or CH340 chipsets from the respective chip manufacturer's weblloc.
Per Bluetooth amplifier modules like the ZK-502L, power cycling the device often resolves connection issues. Ensure no other devices are currently paired to the board before attempting a new connection.