Search found 4 matches

by ramon82
Wed Mar 18, 2020 6:43 pm
Forum: ESP32 Arduino
Topic: ESP32 ADC Non-linear Issues - How do I fix / change Attenuation or width?
Replies: 43
Views: 44831

Re: ESP32 ADC Non-linear Issues - How do I fix / change Attenuation or width?

Hi,

I am wondering if the workaround suggested by HelWeb is working ok for some more people.
I am not sure if this workaround is worthy since it is not feasible for production.

Regards, Ramon.
by ramon82
Wed Mar 18, 2020 6:20 pm
Forum: ESP32 Arduino
Topic: Unexpected ADC offset in ESP32
Replies: 2
Views: 1967

Re: Unexpected ADC offset in ESP32

Hi, I am using Arduino IDE. The configuration is done out of my scope, but I am assuming full scale 12 bits and 3,3V and no attenuation. I have tested at 3 points so as to double check: Vadc_real: 0V -> measured: 0 Vadc_real: 1,78V (through resistor divider) -> measured: 0d1990 (1,60 V) Vadc_real: 3...
by ramon82
Thu Mar 12, 2020 9:21 am
Forum: ESP32 Arduino
Topic: Unexpected ADC offset in ESP32
Replies: 2
Views: 1967

Unexpected ADC offset in ESP32

Hi, I have detected an unexpected offset when measuring values with the adc in the module huzzah32 (esp32). For example, when trying the get the battery value: - 3781 mV acquired in the ESP32 - 4113 mV measured with the multimeter. I am taking 3300 mV as reference (VREF) for adc conversions. 12 bit ...
by ramon82
Thu Jul 04, 2019 2:16 pm
Forum: ESP-WHO
Topic: ESP-WHO for detecting number of people and characteristics
Replies: 1
Views: 6705

ESP-WHO for detecting number of people and characteristics

Hello,

I would like to know if it is possible to perform other features apart from face recognition with ESP-WHO:

1. People counting. Detect how many people are in sight.
2. Create people profile by detecting Age, height, sex, color.

Regards, Ramon.

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