Attention: @2:43: The green pins are GPIO, not Ground (Thank you, George!)

After all these years. I still believe that you are the best Instructor.

Nicely put together tutorial, Andreas! I appreciate the tips to get things working in the boot/config.txt file and the ADC suggestion. I will definitely reference this video again for an upcoming project!

Thank you for this video. It’s a keeper. Your video is an excellent round up of using sensors on a Pi with Python code. It is very useful, not just for those starting out but also as a good reference.

Thank you for this valueable raspberry lesson :) I did went a second time through the video step by step and wrote down all the command lines. :)

This channel is simply ESP online school. I am working on 3d printable projects enhanced by ESP and here I get 90% of the information. I would like some video on ESP integration connected to Amazon Alexa in future? Thank you for you amazing work :)

Thank you for this video and all the work you put into this channel! That's pure gold for an occasional maker like me. Explained very well and clearly, exciting topics, important information for all conceivable projects and lots of input for own ideas. I've stumbled across the channel when I recently started playing around with an ESP32 cam board and have now watched almost all of the videos. Your voice is very pleasant to hear (at least in the not very old videos, obviously a microphone or audio pipeline update) and the Swiss accent is very helpful for me. Despites I can speak English quite well i do not yet understand all of the technical terms. The other maker channels / videos that I have found so far are much more difficult to understand because these UKpostsrs speak much faster and less clearly. With your videos I learn this electronic technical terms without any effords. In addition, the Swiss accent sounds a lot more pleasant to me than, for example, Saxon, Swabian or even Oxford (maybe because I'm a Bavarian;)). Since I do not "use" any advertising on UKposts by haveing adblock active and because I am so enthusiastic about your videos, I would like to support the channel with a donation. However, I don't feel like opening another account at Patreon. (I'm account parsimonious since I take unattendet online accounts as savety threats and also to lazy to care accordingly for another one) Is therefore a way to send you money via e.g. PayPal or bank transfer? I did not find anything like this on your website or your UKposts profile. Please stay the way you are and don't be intimidated by any trolls or envious people. What you are producing here is really great and certainly a big help for interested people of all age, electronic beginners and also advanced makers! (Useful && interesting) --debug output value contains: "Very true!" --> It's the first channel i've subscribed.

Great to see some Python code on the channel. I love when you show when things don't work - in my case, I got stuck trying to make a MLX90614 work only to find out it too does not with the default 400 kHz ic2 clock frequency.

Usefull learning video. I've got some pi's lying around but always wanted to start with it. Maybe this is the right moment. Thanks

Andreas a wonderful video, the T-coupler was very cool much more tidy than my nest of wires between my pi and the breadboard. Every project I have to take time to check for loose or bad connections. Thank you.

Very very useful information and tutorial. Thanks for sharing your valuable knowledge 🙏

Very good video. Thanks. Especially to connect sensors with I2C is very interesting

This is a great topic and I'll keep it in my personal library list!

This is Life Saver Video for my project, I am a CSE Student and hugely struggling about the lack of knoledge I have.

Very helpful video with useful informations and documentation. Thank you !

Thank you for the useful information!

Excellent vidéo as always. Thank you Andreas 👍

Great video and very useful information !

Thank you for this. Keep up the great work!

Thank you for this guide!

Very informative content. Thanks.

I think this is the 'tube I didn't know I needed. The mud settles.... Thank you.

Great video on a very useful subject, so much nice stuff to play with. That ADS1115 is something very useful, going to get some to play with. Perfect for something needing a fast, high resolution differential input. Thanks for the information. Kind regards, South Africa

Andreas, many thanks for your excellent videos. I have appreciated that you have been numbering your videos. For me, who found you recently, they have been very useful for me whilst catching up on past videos. I notice that you have stopped the numbering. This is fine for me as I am nearly caught up. Perhaps you could continue numbering the videos. Many thanks again. Graham

Thank you for the information I found it useful.

Great tutorial, thanks

Thanks for the pinout command. This is very handy!! A hint from me: This tool is provided by the GPIO Zero Python library, which is installed by default on the Raspberry Pi OS desktop image, but not on Raspberry Pi OS Lite.

Nice video, I would like to see the sensor integration with node red. Regards

Thank you for great video!

Looking forward to your take on the Raspberry Pi Pico.

Thank you for this.

Excelente y muy ilustrativo como siembre, un abrazo !!

Sehr gut, Herr Speiss, wie immer, danke.

Tx Andreas, I was planning to connect a DS812 temp sensor to my pi ... and now I now how!

Great video, thank you!

Comment dire ? Merci pour votre travail qui est excellent. Rapide, clair, direct, sans bla bla et vraiment utile pour nous, les bricoleurs avec déjà une bonne expérience en soft et hard.

Another awesome video

Thanks for great video. I have been considering to start learning python for long time. I guess the time is here.

Very useful video. The interested parties can hit the ground running with your sample code. I really need to learn python properly, I can read and understand python code, but writing python code from scratch, is another story! Thanks God for Cut and Paste. It's hard to give up C, specially when I've been programing in C since 1985 :( Suffering from "old dog and new tricks" syndrome.

Do check the register alignment byte order and data type (scaling) with the MAX SPI devices. I had to reverse engineer Arduino libraries to make it work reliably in an ATtiny for translating the output to I2C... ATtiny with MAX mounted close to the sensor to minimise potential for interference. Don't recall the gruesome details but it took an all-nighter to resolve. P.S. Another motivation was to makes the uC use only scaled integer arithmetic for fast results and lower power... It was sending temperature on an attached RTD and the self heating had to be negligible.

This is great, thanks for this overview. At the beginning you shortly show a screenshot of data being graphed over time. How do you create such real time graphs from your sensor readings while also storing the incoming data? Any tips or recommended software for storing and showing incoming sensor data?

Thank you. Have you experimented with hardware interrupts on Rpi?

great job..as always Andreas :) is there not a software serial library for rpi? save you disabling the shell..

A useful overview, thanks Andreas. i2cdetect is showing a second device at 0x1a. Did you also have an MCP9808 temperature sensor connected?

The default I2C pins GPIO3 and GPIO4 have 1.8K pullup resistors on the Raspberry Pi board. No need for external pullups. It's a good idea to check if the sensor boards you are using also have pullups on them too. If they do, they will be in parallel with the ones on the Pi. Most BME280 modules have 10k pullups on them, which is not low enough to cause loading issues. If you have many I2C modules connected, you may need to be concerned with too much loading and need to remove pullups from your modules.

I like the concept of using Adafruit's CircuitPython and Arduino experience to have so many essential libraries available from one place. PIP3 takes a lot of hunting out of the equation.

The pinout command is great and I didn't know about it. I immediately paused the video to try it on my always on mqtt pi. It seemed to hang for quite a while and I was worried but eventually printed.

i really enjoy all your tutorial!! If possible one subject covered i would like to see would be a pi (zero or else) with MotioneyOS, a camera AND a DHT11 or DHT22 connected so we can have camera AND temperature and humidity sensor (for outdoor camera). I dont know if that is possible. MotionEye could be on another Pi with 2-3 pi-zero for camera

Thank you as usual. Still relatively new so this may be a basic question. Are you using the CircuitPython libraries in the standard python3 interpreter? I assumed you had to be in CircuitPython to use those.

Hi Great useful video as usual. I have a question: how to use a Lidar sensor as a mouse or for making touch screen sensor for any lcd or led display.

Hope you are going to cover the new PI microcontroller boards, the PI Pico soon. I have a pair on order. They are only €4 each.

New episode! Hands on knees, back straight and sitting in front row!

thanks for the upload, im using the MAX31855 and successfully recording, however i would like to use 3x thermocouples, how would i change the code to read three boards and also would the wiring be the same for the three boards except changing the cs for each one?

Thanks for that! I wanted to try the new micro raspberry and this video will be useful! Edit: pico i mean

Now you have covered this argument, you gotta do also the Raspberry Pi Microcontroller 😄 That one however has ADC converters and some other yummy features, and is way more affordable than the Arduino.

Thank you very much

Thanks this is grate.

This was awesome video. as a noob, i had no idea of what was going on. can you suggest a dummies guide 101 to this topic please, maybe somwething that discusses only one sensor at a time and a step by step tutorial? cheers and thanks

Nicely done Andreas! Have you experimented with using the newest Raspberry Pi and connect it to an Arduino board with sensors already connected to Arduino C++ sensors and edit the data output to be ported to the raspberry via GPIO?

i did a Heltec ESP8266 WiFi Kit 8 with micropython after uploading a ssd1306 lib file it took like 10 lines of code to print 3 lines of text on the screen! super easy! pretty different from arduino. i hope you do more videos on micro-python! :)

@5:12: the libraries from circuit python are not easily usable! Only if you have an esp32-s2 (ironically, less powerful and no bluetooth!) and solder a new usb connection, you can *actually* use circuit python. The native esp32 support has been discontinued and is only supported as an additional 'wifi/heavy lifting' module ('airlift'). I really would like to know if there's an easy 'plug and play' possibility!

BTW, do you plan to review new Raspberry silicon? I mean their new custom microcontroller. I believe one of the reason they have produced it is actually to serve as a middle tier between realtime-sensors processing and slow-poke RPi mainboards under RPiOS control.

I thought most I2C devices were 100 KHz, but some could manage faster? Or is my information out of date? Thanks for the video in any case! I didn't even realize the RPi supported 1-wire.

Nice video thanks. Have you looked at coding on Raspberry Pi remotely with Visual Studio Code using the Remote Development extension?

What do you suggest for reading shaft speed (RPM) ? There are a couple of different types of sensors (optical, Hall Effect, magnetic, etc.)

Great video! What are the advantages of connecting a sensor to the raspberry pi instead of through an arduino?

You had a video where you mention which type of mosfet you like to use to switch loads on EPS pins. Do you remember which one was that? And which mosfet?

Thanks.

Nice. But one problem of Pi devices work without hardware Interrupt on userland space inside of linux os environment. But for all sensors used pool method for get data. And CPU on this time can't sleep.

For the more adventurous programmer, you can also learn Rust on the RPi. And it includes embedded libraries for accessing pheripherals on the 40 pin header. Rust is an excellent candidate language for embedded software, and so your same program can then be ported to also run on cheaper embedded MCU platforms. Such as ESP32, Nordic NRF, etc.

Pefect !

Good evening Andreas! I have been following your wonderful youtube channel for a long time, and I really cant thank you enough... I wanted to ask you a little advice: I am trying to connect a RFID reader to Raspberry (No problem there), but I have also connected a touch display. The touch display wants to use exclusively the following Pins (which, from docs I have, the RFID ariel also needs): PIN 19 (MOSI) PIN 21 (MISO) PIN 23 (SCK) PIN 22 (GPIO 6).. Do you think I can put the RFID on other pins or is it an impossible task (I could use an Arduino and connect via USB but I'd rather not if at all possible) THank you for ANY advice you can give.

hi very interesting video, thanks for share, maybe possible send the values obtain of sensors from raspberry to one website and make remote estation to get information, thanks.

can you please do a video on grove ultrasonic sensor with raspberrypi setup and software

I have done some testing of DHT11 and BME280 lately. using Python and C. They will only transmit garbage when connected to 3.3 V. When using 5 Volts they work perfectly since middle of December. The wires used are Dupont female-female and about 10 cm's long. The sensors are breakout boards from Ebay. Just my 2 cents.

I am making a digital Speedo and wondering how do I connect a speed sensor to the raspberry pi and how to program it as the speed sensor does 6 pulses every 1 revolution

Should I buy the Pi4 B with the 8gb ram? Since I heard it had some problems with overheating and software bugs, I'm confused a bit

I don't expect to use Raspberry, so why do I watch the video to the end ? But I didn't know that parts of Switzerland are so low, the Leman is at 370m, I checked and 8:48 220m is possible. Thank you !

I am interested in lora satellites and I have seen your videos about two small satellites. please prefer me some links so that I could gain some knowledge.

@Andreas Spiess Hello Andreas, I am trying to read an accelerometer data stream using arduino nano 33 ble, i get the device conntected and subscribe to the characteristic. but still having problems with getting the values, it would be really nice if you can help me getting it work. thanks and by the way nice and very informative videos :)

Unfortunately an OS like Linux makes it much more difficult to get 100% correct timing when needed. Ex. if you want to send or receive high-frequency signals, an Arduino (or Attiny or ESP8266 or ESP32 or STM32 or ...) is just way easier because you can get the timing correct with just delays (or real timer- or pin-interrupts). On a Pi, your process can get pre-empted at the critical moment, messing up the crucial timing. Optimized mechanisms as in the pigpio package can reduce the problem a bit, but are way more difficult to use. I tend to do real-time stuff on a uP (ex. Attiny84) and have it communicate with the Pi using a protocol that the Pi can handle without glitches.

Old ESP32 modules are not supported by the current version of CircuitPython. As CircuitPython is not compatible with MicroPython you can't use the same libraries on these chips. Only new ESP32-S2 microcontrollers are supported by CircuitPython.

17 has before I see your vlog Andreas. Hot here in Australia so not going prospecting. Like we have hobbies mate.

I have a tinkerboard.. can i use raspbian so it can become 100 % raspi ?

Will it works if i install Ubuntu on my raspberry pi, i mean - can i plug in sensors to raspberry?(i suppose -yes, but in not sure)

looking forward that the Raspberry Pi 5 to have faster I/O for even more sensors lol.

Hi Andreas, I love your videos and I would like you to make a video of Raspberry Pi Pico :)

Indeed interesting ! As usual. You probably didn't expect any other comment....

Cool

Hey, I just found out today about Raspberry Pi Pico. Maybe you should take a look at it!

There is one BIG BIG downside to Circuitpython, interrupts are not supported. This obviates the real time support for example, endstop alerts which can be simply handled with the RPi.GPIO library add_event_detect function. This also includes certain i2c multiplexer which provide an interrupts based on the client state change

Great video as always! Straight to the point with 'dumb-down' explanation for beginner like me. Hopefully you can review the Raspberry Pi Pico next.

Btw, do you know Ruuvitag's?

Zooming in on some of the text displays would would help.

👍👍

We talk a lot about sensors and buttons and trying to be energy efficient as possible. I'm wondering why we are not using battery less sensors and buttons, Philips Hue Tap has been around for so many years and I still don't see an alternative for the DIY public. It seems that the only option so far is to interface an EnOcean(www.enocean.com/en/products/enocean_modules_24ghz/) module to our ESP32 or Raspberry Pi and use their Motion/Temperature/Humidity/Lux sensors or buttons. Looks like Eltako uses exact the same modules, hard to believe there is only one way and so few doing battery less devices.

Even in Siberia the temperature does not get below 0 Kelvin ( -1725 C) :)

I have an arduino. But raspberry pi sensors. Can I use them on my arduino?

Good video. First, like you, I start with Python librairies and Python code for I2C temperature sensor (also humidity and pressure). Then I found some C code that was able to do system calls in order to communicate on I2C. github.com/prisme60/BMP280 And finaly, I see that the driver for BME280 and HTU21 already exists in the Linux kernel, but the only way to use them was to create my own device tree module. github.com/prisme60/dts_sensors_rpi You need to use a specific device tree compiler for raspberry that is able to compile fragments.

IMHO, RPi is not really applicable for direct orchestration of sensors. Or, at least, not all sensors should be connected to RPi directly. Raspberry Pi OS is not a real-time system, I had tons of issues working with sensors that are accessible as "/dev/***" only -- just because OS was busy with something else when my software had to communicate to sensors. The same with i2c. Both with my C++ program and Python based. But yes, thank you once again for another helpful video.