Review on 🔌 HiLetgo ADS1115 4 Channel I2C Analog-to-Digital Converter - High Precision for Arduino & Raspberry Pi by Donna Harvey

Arduino Raspberry Pi ADC Converter Development Board from Amazon. During the installation the data was very unstable. A gain of 16 in compare mode skipped the data read by 16 units. After some research, it turned out that the ADC I bought was actually a 12-bit ADC. The revised code for the 12-bit version seems to work fine. However, it is clear that the device did not live up to its advertising and did not meet the expected accuracy of a 16-bit ADC. Purchased ADK type identification with QIFFI logo. When I discovered this issue, I found several previously purchased HiLetgo 16-bit ADCs that were 12-bit (I thought this was an intermittent sensor issue at the time). Emailed the above response to HiLetgo (support@hiletgo.com) and received no response.