DevHeads IoT Integration Server
The DevHeads IoT Integration Server accelerates technology engineering by helping pro devs learn, share and collaborate.
JoinDevHeads IoT Integration Server
The DevHeads IoT Integration Server accelerates technology engineering by helping pro devs learn, share and collaborate.
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PCB Design review. How did I do?
Navigating Capacitor Choices in My Synchronous Buck Converter Design
Fingerprint Sensor Enrollment Failing at Image Conversion Step
enrollFinger()
method returns an error code FINGERPRINT_IMAGEMESS
.
here is my code:
```int result = finger.enrollFinger(1); // Enroll fingerprint with ID 1
if (result == FINGERPRINT_OK) {
Serial.println("Fingerprint enrolled!");...UnboundLocalError in Obstacle Detection with Ultrasonic Sensor Using MicroPython
obstacle detection
, line following
, speed control
, and environmental monitoring
. am trying to detect obstacles in front of the car using an ultrasonic sensor HC-SR04
and control the motor accordingly. my aim is to measure the distance to obstacles and stop the car if an obstacle is too close.
But I keep getting the error
UnboundLocalError: local variable 'start' referenced before assignment
here's my code 👇 ...Troubleshooting Frequency Dropout Issues in Instrument with Photodetector
Connecting 12V WS2815 LEDs to Arduino Nano: Do I Need Any Precautions to Ensure Safe Operation?
How to Interface a 4-Wire Vacuum Suction Motor from a Vacuum Robot with a Raspberry Pi?
How to Interface an Industrial TDS Electrode with Arduino to Read and Display mV Values?
Designing an SDR with PoE Power Supply: Synchronizing SMPS and Managing Heat and Noise
Designing a Type-C Charger with 12V Input for Phone and Laptop Charging
Check Out My New Mini MIDI Controller Prototype – Any Tips on Design or Control Ideas?
Incorrect Battery Percentage Reading on MKR 1010 with 3.7V Lithium Battery
SWV printf Output Issue in C++ on STM32G431KB
Measuring Current Consumption on STM32 Nucleo-64: JP6 Jumper Behavior and Ammeter Use
Should I Connect the 120Ω Resistor on UART-to-RS485 Converter for 2-Module Communication?
MOSFET Heating Issue in Boost Converter with SG3525 and IRFB4110
Feedback on MIDI-to-Arduino Adapter Circuit Before Testing?
Logic for Sensor Measuring Natural Water Rise and Surface Pressure in a Well Setup?
Why Does My ATTiny85 Analog Input Return a Constant Value After 24 Hours?
analogRead()
.
I haven’t applied any calculations yet, just retrieving the value from my voltage divider. But this value doesn’t budge at all... I’m using a 3.7V 400mAh LiPo battery....Is it possible to use this MAX30102 heart rate sensor to detect a heart attack?