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This user guide covers the 1S 2S 3S 4S Lithium Battery Capacity Indicator Voltmeter Module — including what 1S/2S/3S/4S means, how to connect it, how to read the bar display,...
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The 4.5-30V DC two-wire panel mount LED digital voltmeter makes battery and charging voltage monitoring simple — just two wires, no extra circuitry. Ideal for cars, RVs, motorcycles, and DIY...
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This user guide covers the IRF520 24V MOSFET driver module — a compact low-side switch that lets Arduino, Raspberry Pi, and other 3.3V/5V microcontrollers control high-current DC loads up to...
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This user guide covers the CD74HC4067 16-channel analog/digital multiplexer breakout board — connect up to 16 sensors or devices to your Arduino using just 5 pins. Includes full pinout, channel...
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This user guide covers the bi-directional 5V to 3.3V 4-channel logic level converter — ideal for connecting 3.3V I2C sensors to 5V Arduino boards. Includes full pinout, wiring, Arduino code...
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Generate precise square waves on two independent channels with the 5V PWM Pulse/Square Wave Generator Module. Covers both firmware versions, button controls, frequency range selection, RS-232 serial commands, and output...
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Combine red, green, and blue into one compact 3mm nipple-package LED and mix virtually any color with PWM. Covers pinout, resistor calculations, Arduino code, color mixing, and the RGB vs....
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The WGI10-48S12L is an isolated 48V to 12V DC-DC converter rated at 10A, 120W, with IP65 waterproofing and 92% efficiency. This guide covers wiring, specifications, −48V telecom power system connections,...
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Learn how to install and use the PAM8610 10W+10W Class D stereo audio amplifier module. This guide covers module components, speaker wiring, DC power connections, volume control, and troubleshooting tips...
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The PAM8406 is a compact 5W+5W Class D stereo amplifier module perfect for DIY audio builds. This guide covers power and speaker wiring, pin connections, volume controls, and troubleshooting tips...
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Learn how to use the HC-05 Bluetooth RS-232 transceiver module with Arduino. This user guide covers wiring, AT command mode, master/slave configuration, pairing with phones and other modules, serial communication...
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📋 Overview ⚠️ NOTE: This WeMos-compatible NodeMCU WiFi Development board features the same specifications as the standard LoLin NodeMCU V3 board, with the following differences: ✅ The size is reduced to...
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