DevHeads IoT Integration Server
The DevHeads IoT Integration Server accelerates technology engineering by helping pro devs learn, share and collaborate.
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DevHeads IoT Integration Server
The DevHeads IoT Integration Server accelerates technology engineering by helping pro devs learn, share and collaborate.
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Why isn't my "Hello World" displaying on the LCD screen despite correct connections and power?
Hey Devs , I've been trying to make this simple LCD screen circuit that displays "Hello World".
I have made my connections like this
And my code is very simple
`` int rs = 7, en = 8, d4 = 9, d5 = 10, d6 = 11, d7 = 12, readPin = A2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);...
Solution:
It may be due to the screen itself being broken
How to optimize PCB design for DRV8320 and STM32G431RBT6TR to minimize vias?
Hey everyone,
I'm currently working on a PCB design involving the DRV8320 and the STM32G431RBT6TR. As you can see in the attached images, I'm trying to minimize the number of vias between these two components. Ideally, I'd like to have straight traces with minimal or no vias, maintaining the same orientation of the chips.
However, I'm finding it challenging to maintain the necessary functionality, such as BEMF detection with the Virtual Neutral Point and the different comparators for zero-crossing BEMF....
Solution:
How to optimize resistor values for reading multiple buttons on a single analog input?
Came up with some code for a project I'm working on that is able to read two buttons for each analog input (and tell if two have been pushed) based on this circuit. It works, but is not really optimized resistors-wise. I've yet to figure out a generalized expression for this type of parallel circuit (thinking one in which I could make it 3, 4, whatever resistors/buttons), which admittedly would be a matter of elegantly combining some algebraic equations.
Any thoughts?
Here's the rest of my code, FWIW https://github.com/JeremySCook/arduino-experiments/tree/main/MIDI/1-inch-MIDI...
Troubleshooting ADC Readings from Photodiode on Arduino
Hi everyone,
I am trying to rebuild a device and have wired everything according to the schematic:
You can see that the output pin of the photodiode (pin 5) is connected to the ADC pin A0 of the Arduino. By adjusting the potentiometer, I should of course get values between 0 - 1023 (10 bit ADC). However, no matter how I adjust the potentiometer, I always get 1023, so I think the sensor is "overshooting" all the time. I have tested the potentiometer previously and it works fine. I suspect there is something wrong with the wiring diagram....
Solution:
In the circuit i cant see where the arduino is connected to the power source
Seeking Feedback on My First ATmega32 Development Board Schematic
i designed this basic atmega32 16 au dev board can anyone , if its fundamentally correct ? its my first schematic that i have build from scratch
Solution:
Looks alright, although please go through the points in the link to make it more better. https://electronics.stackexchange.com/questions/28251/rules-and-guidelines-for-drawing-good-schematics
Do you guys have any idea where I can find this type of transformer?
I have a AC function generator that outputs a maximum of 20 volts. I need to connect this generator to a Step Down Transformer, keeping the sine wave on the output, for a small educational project I'm working on.
The problem is that I can't find a transformer with low input voltage anywhere. I've being looking for days already and the only transformers I found are above 117V on the primary.I and
Do you guys have any idea where I can find this type of transformer?...
Solution:
Look for small audio transformers or repurpose transformers from old electronics with low input voltage. Check suppliers like Digi-Key or Mouser
