Tag: adc

LabJack U6 Pro (and others) self-test script (#P53)

On the eternal quest of de-cluttering the living room, I picked up a bunch of stored “defective” LabJack units the other day. These are USB DAQ modules with generally very decent specs, in the case of the U6 Pro a 24bit (22bit effective) DAC with 14-port multiplexing (so 14 analogue ports, or 7 differential analogue ports), fixed 10µA and 200µA sources, two 12bit DACs, internal temperature compensation for temperature probes, 20 GPIOs and a bunch of miscellaneous stuff over the DA15 and DC37 Sub-D ports. All of them were discarded with AIN failure…and that didn’t add up. […]

3rd May 2026 4th May 2026 By Bzzz In 2 Comments

16 Bit I2C ADS1115 Module ADC 4 channel with Pro Gain Amplifier RPi (WHL #26)

Meep. We finally have a new product review, after all that editorial, recap and electronic load rubbish ;)

Today’s item in the mail is an I²C ADC on a small PCB, running four channels (or two differential ones) with 16 bit precision. Sounds nice? Well, if it holds the claimed specs, it IS a nice product! I bought it in mid-June on AliExpress for 2.06 USD. Adafruit, by the way, charges 15 bucks for the exact same thing. Do I smell profit margin?

Here’s how it looks straight out of the ESD bag:

Backside is a tad boring (keep the VDD in mind):

(there’s a floating island on the GND plane, boo!) […]

3rd September 2017 3rd September 2017 By Bzzz In 2 Comments