I2C Module
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16×2 LCD Display with I2C Interface – Blue Backlight
Display your project data with only four connections. This 16×2 LCD comes with the I2C backpack already soldered, making it ready to use without additional soldering.
Display: 16 characters × 2 lines
Backlight: Blue with white characters
Interface: I2C (VCC, GND, SDA, SCL)
Operating Voltage: 5V DC
Contrast: Adjustable onboard potentiometer
Beginner Friendly: I2C adapter already soldered
Best For: Arduino, ESP32, Raspberry Pi, IoT and STEM projects
A 16×2 character LCD provides two rows of 16 characters, while using an I2C interface greatly reduces the number of microcontroller connections required compared with the standard parallel interface.
16×2 LCD Display with I2C Interface – Yellow Backlight
A clear, beginner-friendly 16×2 character display with the I2C backpack already soldered. The yellow-green backlight provides excellent readability while the I2C interface reduces wiring to only four connections.
Display: 16 characters × 2 lines
Backlight: Yellow-Green
Interface: I2C (VCC, GND, SDA, SCL)
Voltage: 5V DC
Contrast: Adjustable
Installation: Ready to use – no backpack soldering required
Best For: Arduino, ESP32, Raspberry Pi, IoT and educational projects
MAX30102 Pulse Oximeter & Heart Rate Sensor Module (SpO2) – Arduino Compatible
The MAX30102 is a high-precision integrated pulse oximetry (SpO2) and heart-rate monitor biosensor module, perfect for DIY health tracking and wearable IoT devices.
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Sensor: MAX30102 (Upgraded from the older MAX30100)
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Measurements: Heart Rate (BPM) & Blood Oxygen Saturation (SpO2)
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Interface: I2C (Standard protocol)
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Operating Voltage: 3.3V – 5V
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Current: Ultra-low power consumption (ideal for battery wearables)
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Application: Fitness trackers, medical monitoring projects, STEM research