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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Should I Connect the 120Ī© Resistor on UART-to-RS485 Converter for 2-Module Communication?
Hello,
Got a uart-to-rs485 converter board from the AliExpress .
Its schematic is very close to this one...
Solution:
I would say you should not short it. Leave it open as it is in the schematics diagram. If it's a Uart line then it shouldn't have an issue. But I would say you should check the datasheet and confirm what the manufacturer said about this.
Feedback on MIDI-to-Arduino Adapter Circuit Before Testing?
Working on a MIDI-to-Arduino et al adapter. Not the hardest circuit in the world, and easy enough to breadboard, but might be useful for some. Any comments so far? Guess I should breadboard it and test it out.
Is it possible to use this MAX30102 heart rate sensor to detect a heart attack?
Hi there, right now I am planning to make a device which can detect a heart attack by using MAX30102
After a small research, I found out that a heart attack may be caused by a sudden increase in heart rates or the SpO2 level (the amount of oxygen that your blood is carrying) is lower than 90%.
So my question is: Is it possible to use this MAX30102 heart rate sensor to detect a heart attack?...
Solution:
The MAX30102 sensor is great for measuring heart rate and SpO2, but using it to detect a heart attack isnāt straightforward. Heart attacks involve more than just changes in heart rate or oxygen levels, so relying on this sensor alone wouldn't be enough for accurate detection.
But I think that AI can help because it can analyze heart rate and SpO2 patterns over time to spot anything unusual. But to reliably detect a heart attack, you'd need more data, like ECG readings or other health metrics....
Handling Disconnections in KiCad with Rat Bites and Conductive Screws
Hi, I've got a KiCad project (revised 1-inch-midi) that I've been working on that involves 3 boards separated by rat bites. Ground, VCC and two signal pins are passed between the boards via conductive screws nuts. While I think I have a functional design, the error checking function on the PCB editor shows disconnections between these pads as they are not connected as-drawn. Is there a way to put connections into the schematic layout so that the PCB editor is satisfied?
I think it will work as-is, but would be interested in any ideas/suggestions. Also I'm certainly open to any critique of the design in general, as I'm planning to order it soon. I put up an earlier version of the board here for your perusal: https://github.com/JeremySCook/PCBs/tree/main/1-inch-MIDI...
Seeking Feedback on ICSP Configuration for 1-Inch MIDI Project Revision
Hello - I'm working on a revision of my 1-inch-MIDI project https://www.youtube.com/watch?v=5Ws_JfCw5NY that incorporates a potentiometer on the AUX pin, along with an ICSP header arrangement. Thinking I'll use a pogo pin device.
Anyway, I think I have the ICSP configuration correctly laid out here, but I would love a second opinion. Happy to hear any other suggestions or answer questions on the project!...
Issues with measuring multiple switch inputs via single DAC in R-2R resistor configuration
Working on a project trying to measure multiple switch inputs via a single DAC in an R-2R resistor configuration. Took me a while to realize that the inputs needed to be HIGH or LOW, not HIGH or OFF.
What also threw me off though was that each side of the breadboard's power/ground rails need to be jumpered together in the middle. That took me a while to figure out too. Guess you shouldn't assume anything when working on hardware!...
How can I optimize power and ensure efficient operation of the VL53L0X sensor and OLED on BeagleBone
hello devs, still based on my project parking assistance system using a BeagleBone Black running Embedded Linux, VL53L0X time of flight distance sensor to detect the distance to nearby objects and a 0.96-inch OLED display to show the distance and warning messages. How can I optimize the system to reduce power consumption and ensure the display and sensor work efficiently, i have ensured correct power sequences, avoided immediate reinitialization after power on. But the `Sensor not responding a...
Solution:
i was able to this earlier today am passed this stage and have a different issue now
