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iQuest Low-Frequency 8-Channel 4-20mA Current Loop HAT for Raspberry Pi iQuest Low-Frequency 8-Channel 4-20mA Current Loop HAT for Raspberry Pi
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iQuest Low-Frequency 8-Channel 4-20mA Current Loop HAT for Raspberry Pi

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Indicative market price: R1,000.00
R946.81
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Warranty Type: Manufacturer This product is covered by a 12-month limited warranty against defects in materials and workmanship under normal use. The warranty does not cover damage caused by misuse, improper installation, or unauthorized modifications. Money-Back Guarantee: 10 Days: This product is backed by our 10-Day Money-Back Guarantee. If you are not fully satisfied, you may return the item in its original condition within 10 days of purchase for a refund. This guarantee is in addition to the standard product warranty.
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Product details

Condition
New
Location
International
Product code
IQ-SS-HAT-CL820-RPI
Bob Shop ID
654343255

The iQLF4A20M8C is a low-frequency, 8-channel ADC HAT designed for interfacing 420mA industrial sensors with the Raspberry Pi. Built around two ADS1115 16-bit ADCs and integrated precision 250 sense resistors, it converts industry-standard current loops into accurate voltage readings (15V), fully accessible over I²C.

Each ADS1115 is factory-mapped to a dedicated I²C address, enabling simple and scalable multi-channel data acquisition. The HAT is optimized for low-frequency applications such as industrial monitoring, SCADA integration, and environmental sensing, where reliability and precision are critical.

Key Features:

  • 8 Analog Input Channels for 420mA current loop sensors
  • Converts 420mA to 15V via onboard 250 precision resistors
  • Powered by 2 × ADS1115 (16-bit, low-noise ADCs)
    • IC1 @ 0x49: AIN03 Channels 14
    • IC2 @ 0x48: AIN03 Channels 58
  • I²C Communication Plug-and-play with Raspberry Pi
  • Low-frequency optimized (ideal <100 Hz)
  • Sturdy screw terminal blocks for sensor wiring
  • Compatible with Python and open-source libraries

Ideal For:

  • Industrial 420mA Sensor Integration
  • IoT and SCADA Systems
  • PLC to Raspberry Pi Interface
  • Process Control and Monitoring
  • Remote Environmental Sensing
  • Engineering Training Kits
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