@EmbeddedJourneys

6 Followers
4 Following
30 Posts
I love making little machines tick—especially the smaller ones! The smaller they are, the cooler they get.
EmbeddedJourneysMay 12

While probing a GPIO pin on my oscilloscope, I noticed it toggled between 2.4V and 3.3V. Using another reference pin, toggling at exactly the same time swinged correctly between 0V and 3.3V

I think I might have damaged a pin on my #rp2350 :( #debugging #signals #embedded #pico2

EmbeddedJourneysMay 6

Expected to create a 10us pulse in python using time.sleep() on my raspberry pi:

GPIO.output(pin_trig, GPIO.HIGH)
time.sleep(10E-6)
GPIO.output(pin_trig, GPIO.LOW)

Only to see a 95.5us pulse with my #siglent scope

#GPIO #embedded #raspberrypi #debugging

EmbeddedJourneysMay 2
Lab upgrade! Finally better measurements, more insights!
#oscilloscope #siglent #SDS814X HD
EmbeddedJourneysJan 7
Correct result came a bit faster then expected! Step response measured through RP2350 ADC from 3V3 to Ground. The transition in between is due to the ADC pin being floating for a brief moment in time #pico2 #embedded
EmbeddedJourneysJan 7
ADC readouts on the #pico2 are coming together. Plot below for the visualization of MSB of the adc output (4 bits). Switching input from 3V3 to GND.
EmbeddedJourneysDec 7, 2025
Discovered a neat pico 2w detail today! You can safely short Vbus and Vsys when powering the device with only one power source. No need for a Schottky diode in custom designs and gains some efficiency too!
From now on, default short on my breadboard ;)
#embedded #raspberrypi
EmbeddedJourneysDec 5, 2025
This is how I take my Pico 2 on-the-go! 😅
https://embeddedjourneys.com/blog/rpi-pico-on-the-go/
#pico2 #raspberrypi #SDK