My year-end mailbag video contains devices and parts around our hobby, particularly around power and power delivery. It is divided into two parts. The first airs on 11/11, and the second part airs one day later. Both in time to grab the singles day discounts.
Chapters: 00:00:00 Intro 00:00:44 Power meter WM150 50V/80A 00:04:36 RCNUN DC-DC converters (buck and buck-boost) 00:07:35 DC connectors (XT30, XT60, Anderson Power Poles) and tricks 00:10:28 Wired USB-C power connectors 00:12:04 Walter, an ESP32 with NB-IOT functionality 00:15:01 UBLOX C214 RTK precision GPS board
The Raspberry P4 is on all channels. Hurrah everywhere. But is this true? What is it suitable for, and is it worth buying one now? Let’s have a closer look. Buckle up; it will not be a nice ride.
Links:
RPi 4 case (STL files): https://www.microcenter.com/tech_center/article/10783/raspberry-pi-4-model-b---3d-printable-case
RPi 4 Benchmarks: https://core-electronics.com.au/tutorials/raspberry-pi-4-vs-3-model-b-performance-benchmark.html
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
My Patreon Page: https://www.patreon.com/AndreasSpiess
My Bitcoin address: 19FSmqbBzb5zsYB1d8Bq4KbxVmezToDNTV
If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel
For Banggood https://bit.ly/2jAQEf4
For AliExpress: http://bit.ly/2B0yTLL
For ebay.com: http://ebay.to/2DuYXBp
https://www.facebook.com/profile.php?id=100013947273409
https://twitter.com/spiessa
https://www.instructables.com/member/Andreas%20Spiess/
Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job
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https://www.youtube.com/watch?v=0diTHAmVbhc
This is the first part of (I hope) 4 where I try to build a software framework for small connected IoT devices. The software is based on the Arduino IDE
In this episode I build a small device which calls a RESTful API to get the next public transportation from my location and starts to warn me with a beeper when the bus arrives.
The episode shows all needed steps to build such a device and other web-services can be used using the same principles.
In the next episode I will connect the ESP8266 to my smartphone to exchange data like access point name and password.
The code is on github: https://github.com/SensorsIot/Internet-of-Things-with-ESP8266
The link to the Google Chrome App for REST messages: https://chrome.google.com/webstore/detail/advanced-rest-client/hgmloofddffdnphfgcellkdfbfbjeloo
The link to the source of APIs: http://www.programmableweb.com/
The link to the Swiss public transportation API: http://transport.opendata.ch/
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
If you want to support the channel and buy from Banggood use this link to start your shopping: https://bit.ly/2jAQEf4 (no additional charges for you)
Official Wemos Store: http://s.click.aliexpress.com/e/jUzBiIq
https://www.facebook.com/SensorsIOT/
https://twitter.com/spiessa
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https://www.youtube.com/watch?v=NzJ2-siImC0
I often get questions about how to measure voltage with microcontrollers. We will look at this topic, at the quality of built-in and external Analog-to-digital converters, and I will show you some “secrets.”
In this video, we will:
- See how ADCs work
- Look at how we can determine the quality of ADCs
- Compare the ADCs of different microcontrollers with external chips
- Learn how to tweak the calculations to get the best out of any ADC
- See how we can extend the range of ADCs
- Discover some “hidden” things of Microcontrollers and their ADCs
- Look at different external boards and their usage
I am a proud Patreon of GreatScott!, Electroboom, Electronoobs, EEVblog, and others.
Links:
ESP32 dev board: http://s.click.aliexpress.com/e/_dZRlwBw
ESP32 Breakout: http://s.click.aliexpress.com/e/_dYPpD2c
ADS1115: http://s.click.aliexpress.com/e/_d9kxGU8
PCF8591: http://s.click.aliexpress.com/e/_dTanrOc
AD7705: http://s.click.aliexpress.com/e/_d6fDmrw
Nice looking ADC (AD7606): http://s.click.aliexpress.com/e/_dYHWm0A
Voltage reference: http://s.click.aliexpress.com/e/_d6N3GHc
Voltage Divider: http://www.ohmslawcalculator.com/voltage-divider-calculator
ADC Theory: https://e2e.ti.com/blogs_/archives/b/precisionhub/archive/2014/10/07/adc-accuracy-part-1-is-accuracy-different-from-resolution
DAC Theory: https://en.wikipedia.org/wiki/Digital-to-analog_converter
The links above usually are affiliate links which support the channel (no additional cost for you).
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
My Patreon Page: https://www.patreon.com/AndreasSpiess
Discord: https://discord.gg/JfgDSa8
If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel
My Amazon.com shop: https://www.amazon.com/shop/andreasspiess
For Banggood https://bit.ly/2jAQEf4
For AliExpress: http://bit.ly/2B0yTLL
For Amazon.de: http://amzn.to/2r0ZCYI
For Amazon UK: http://amzn.to/2mxBaJf
For ebay.com: http://ebay.to/2DuYXBp
https://www.facebook.com/profile.php?id=100013947273409
https://twitter.com/spiessa
https://www.instructables.com/member/Andreas%20Spiess/
Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job
As an Amazon Associate, I earn from qualifying purchases
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https://www.youtube.com/watch?v=UAJMLTzrM9Q
Let’s build a connected scale, which alarms us when the food bin is empty. Of course, we will be able to use the same principle to measure the weight of any other good like the honey in remote beehives, or even your own weight to visualize it somewhere in the cloud…
So, today we will:
- Measure quite small weights with an Arduino like Microcontroller
- We will need some tricks to do that
- Then, we will build a bowl for our cat which is capable to detect if no food is available anymore
- And we will send a Twitter alarm to our Smartphone
We will also slow down the clock rate of the ESP32 to fit the timing of the HX711chip, and will use an OLED display and an MQTT library.
Links:
Sketch: https://github.com/SensorsIot/Weight-Sensors
HX711 library: Based on https://github.com/bogde/HX711. Please use the one in my Github. Otherwise, you will get a compilation error
HX711 module: http://bit.ly/2fBZ82W
Strain Gauges: http://s.click.aliexpress.com/e/Jqb2biU
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
If you want to support the channel and buy from Banggood use this link to start your shopping: https://bit.ly/2jAQEf4 (no additional charges for you)
Official Wemos Store: http://s.click.aliexpress.com/e/jUzBiIq
https://www.facebook.com/SensorsIOT/
https://twitter.com/spiessa
https://www.instructables.com/member/Andreas%20Spiess/
Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my main job
Who is the first to buy me a coffee? https://www.paypal.me/AndreasSpiess
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https://www.youtube.com/watch?v=iywsJB-T-mU
I love Neopixels, and I think they are a real invention. And they are dirt cheap. But you have to pay attention if you plan to use them! You can even burn your house.
Links:
Sketch: https://github.com/SensorsIot/Youtube-Subscriber-Counter/tree/master/YoutubeCounterNeopixelV1.0
8x8 Matrix: http://s.click.aliexpress.com/e/cqwLjSnO
Neopixel Strip: http://s.click.aliexpress.com/e/b9BOZW12 or http://bit.ly/2LfVbQi (less pixels/m)
UT204 Ampere Meter: http://s.click.aliexpress.com/e/WnJ04Bm
3A and 8A Power Supply: http://s.click.aliexpress.com/e/biQ3wX6u
Tom's Blog: http://bit.ly/2EnsSOn
Youtube Library: https://github.com/witnessmenow/arduino-youtube-api
Music Library: https://github.com/maxint-rd/ESP-MusicEngine
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
My Patreon Page: https://www.patreon.com/AndreasSpiess
My Bitcoin address: 19FSmqbBzb5zsYB1d8Bq4KbxVmezToDNTV
If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission (of your purchases the next 24 hours) to buy new stuff for the channel
For Banggood https://bit.ly/2jAQEf4
For AliExpress: http://bit.ly/2B0yTLL
For ebay.com: http://ebay.to/2DuYXBp
https://www.facebook.com/profile.php?id=100013947273409
https://twitter.com/spiessa
https://www.instructables.com/member/Andreas%20Spiess/
Please do not try to Email me or invite me on LinkedIn. These communication channels are reserved for my primary job
...
https://www.youtube.com/watch?v=IIl5nDjfkjY
I love Neopixels, and I think they are a real invention. And they are dirt cheap. But you have to pay attention if you plan to use them! You can even burn your house.
My second channel: https://www.youtube.com/channel/UCQwyP4Yd0-O49e05kMUJgQQ
Links:
Sketch: https://github.com/SensorsIot/Youtube-Subscriber-Counter/tree/master/YoutubeCounterNeopixelV1.0 (will no more work because Youtube changed its policy)
8x8 Matrix: https://s.click.aliexpress.com/e/_Dkn8YwB
Neopixel Strip: http://s.click.aliexpress.com/e/b9BOZW12 or https://amzn.to/3b3G268
UT204 Ampere Meter: https://s.click.aliexpress.com/e/_DBBPxx5 or https://amzn.to/3PNKl4a
3A and 8A Power Supply: https://s.click.aliexpress.com/e/_DDQr8zV
Tom's Blog: http://bit.ly/2EnsSOn
Youtube Library: https://github.com/witnessmenow/arduino-youtube-api
Music Library: https://github.com/maxint-rd/ESP-MusicEngine
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
The links above usually are affiliate links that support the channel (no additional cost for you).
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
My Patreon Page: https://www.patreon.com/AndreasSpiess
Discord: https://discord.gg/JfgDSa8
If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission on your purchases to buy new stuff for the channel
My Amazon.com shop: https://www.amazon.com/shop/andreasspiess
For Banggood https://bit.ly/2jAQEf4
For AliExpress: http://bit.ly/2B0yTLL
For Amazon.de: http://amzn.to/2r0ZCYI
For Amazon UK: http://amzn.to/2mxBaJf
For ebay.com: http://ebay.to/2DuYXBp
https://www.facebook.com/profile.php?id=100013947273409
https://twitter.com/spiessa
https://www.instructables.com/member/Andreas%20Spiess/
Please do not try to email me. This communication channel is reserved for my primary job
As an Amazon Associate, I earn from qualifying purchases
#no#midroll#ads
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https://www.youtube.com/watch?v=YQi0kudzc5A
Measuring the power consumption of battery-operated IOT devices is tricky. In this video, we will look at how to measure tiny currents, and in a next video, we will use this knowledge to test some new ESP32 boards.
I will introduce you to the new Power Profiler Kit II from Nordic and compare it with other well-known tools to determine which one is the best value for your money.
I am a proud Patreon of @GreatScott!, @ElectroBOOM, @Electronoobs, @EEVblog, and others. No Docker, No Microsoft Teams, Zoom
Links:
Micro Current Gold: https://www.eevblog.com/projects/ucurrent/
Current Ranger: https://lowpowerlab.com/guide/currentranger/
Power Profiler Kit II: https://www.nordicsemi.com/Software-and-tools/Development-Tools/Power-Profiler-Kit-2
Otii: https://www.qoitech.com/otii/
Joulescope: https://www.joulescope.com/products/joulescope-precision-dc-energy-analyzer
Lilygo T7 : https://s.click.aliexpress.com/e/_9JQvgP or https://amzn.to/3iztqoL
The links above usually are affiliate links that support the channel (no additional cost for you).
Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
My Patreon Page: https://www.patreon.com/AndreasSpiess
Discord: https://discord.gg/JfgDSa8
If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission of your purchases to buy new stuff for the channel
My Amazon.com shop: https://www.amazon.com/shop/andreasspiess
For Banggood https://bit.ly/2jAQEf4
For AliExpress: http://bit.ly/2B0yTLL
For Amazon.de: http://amzn.to/2r0ZCYI
For Amazon UK: http://amzn.to/2mxBaJf
For ebay.com: http://ebay.to/2DuYXBp
https://www.facebook.com/profile.php?id=100013947273409
https://twitter.com/spiessa
https://www.instructables.com/member/Andreas%20Spiess/
Please do not try to email me. This communication channel is reserved for my primary job
As an Amazon Associate, I earn from qualifying purchases
#no#midroll#ads
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https://www.youtube.com/watch?v=LUB8RWzzLWc
Today, this channel will try to start into a new area: The area of the replacement of our beloved ESP8266 by the new ESP32. I invite you to join this journey. At the end of this video, you should be able to judge, if you want to order your first board (or take it out of your drawer)
Summary:
• We checked the GPIOs out, and discovered, that we have many more of them, and that they abandoned the Dx numbering scheme. So, we do not have to write our sketches different for the different boards.
• Then, we looked at the different examples provided with the infrastructure. This will be stuff for many videos to come. Today, we tired PWM and it worked. We were able to generate a fading LED, steer a servo, and even create a primitive DAC with this function.
• Next, we tried a simple example to check, if the Wi-Fi really works. And it does. We learned, that we will have to change all our ESP8266 sketches, if we want to port them to the ESP32.
• Then, I ported my NTP library to the ESP. With one small change, it worked and delivered accurate time also on the ESP32.
• At the end, we checked also the new touch pins and, together with the PWM functionality from the beginning of the video, were able to create a small instrument.
Attention: If your Arduino IDE is installed in the "Program file" area of Windows, you need to run "get.exe" as administrator.
Links:
Easier way to install ESP32 software: https://youtu.be/DgaKlh081tU
Board in this video:
WeMos® LOLIN32 Board http://bit.ly/2t2zXeW
Other ESP32 boards (from video #143):
TTGO ESP32 Module https://www.aliexpress.com/item/TTGO-ESP32-Dev-Module-WiFi-Bluetooth-4MB-Flash/32813561581.html
ESP32 (NodeMCU type) Board http://bit.ly/2sOMR3E
ESP32 Development Board (Yellow Pins) https://www.aliexpress.com/item/ESP32-Development-Board-WiFi-Bluetooth-Ultra-Low-Power-Consumption-Dual-Cores-ESP-32-ESP-32S-Board/32802136026.html
ESP32 X-Shield https://www.aliexpress.com/item/Lolin-ESP32-wemos-ESP32-WiFi-Modules-Bluetooth-Dual-ESP-32-ESP-32S-ESP8266/32807523301.html
ESP32 Lolin Board with LiPo https://www.aliexpress.com/item/WEMOS-LOLIN32-V1-0-0-wifi-bluetooth-board-based-ESP-32-4MB-FLASH/32814488554.html
ESP32 OLED Board http://bit.ly/2tosirM
ESP32 Board with 18650 https://www.aliexpress.com/item/WEMOS-WiFi-Bluetooth-Battery-ESP32-development-tool/32811429908.html
D1 mini ESP32 board https://www.aliexpress.com/item/MH-ET-LIVE-D1-mini-ESP32-ESP-32-WiFi-Bluetooth-Internet-of-Things-development-board-based/32816073234.html
WeMos Arduino like ESP32 Board http://bit.ly/2tUZVnC
Cheapest ESP32 board (source not tested by me): https://www.aliexpress.com/item/Lolin-ESP32-wemos-ESP32-WiFi-Modules-Bluetooth-Dual-ESP-32-ESP-32S-ESP8266/32804853522.html
WEMOS Official Store: http://s.click.aliexpress.com/e/jUzBiIq
Support
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https://www.youtube.com/watch?v=SBG7ccW5gpA