All communication media such as bus systems, RF, WIFI...
Ein ESP32 ein Display was will man mehr. So oder so ähnlich stellt sich das LilyGo ESP32 Oled Board vor. Es ist relativ kurz und passt gerade so, mit einer verbleibenden Reihe auf jeder Seitauf, ein Steckbrett. Fakten Allgemeines Beschreibung Wert Prozessor ESP32 Flash [MB] 16 USB CP2102 Display SSD1306 Lipo Anschluss [mm] JST 2x …
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A plant stake with ESP32 and a few sensors. What it can do, you'll find out in the post.
Continue reading "ESP32 HiGrow V1.0 (Pflanzenspieß)"
I have described how to install the PlatformIO IDE in the relevant report. This section is about using it for the ESP8266. I am using a NodeMCU V3 for hardware.
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Neatly packaged in a silicone wristband, this is the smallest version of the ESP32 that I know of. The ESP itself does not have its own programmer. However, there is a kit that contains the wristband and a programmer. Once initialised, the wristband can be updated via OTA.
Continue reading "VORSCHAU – ESP 32 Armband – LilyGo-T-Wristband"
Developed at Motorola in 1987, it implements a „standardised“ serial bus for communication with peripheral devices such as displays, sensors, etc.
Continue reading "SPI – Serielle Peripherie Schnittstelle"
Bei Microcontrollern gibt es unterschiedliche Logiklevel. Der Logiklevel sagt aus mit welcher Spannung das Gerät arbeitet. Die bekanntesten sind wohl 5V und 3.3V. Da man in der Praxis immer mal wieder vor dem Problem steht ein 5V Gerät in Verbindung mit einem 3.3V Gerät zu betreiben, möchte ich an dieser Stelle mal den Logik-Level Konverter …
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At this point, a rather expensive sensor for around >36€, but one that beats the other distance sensors by „lengths“. I actually wanted to test the I²C version, but the UART version arrived here, which is why I'm presenting it now. (Since I couldn't find any documentation, I'm still not sure if I²C wouldn't also be possible. 🙂)
Continue reading "TF Mini Laser-Entfernungsmesser"
This laser distance sensor is faster than sonar sensors such as (for example, HC-SR04, US100). It measures in the range of 30mm up to 2 metres and is controlled via the I²C bus at address 0x29. The address can be changed via software.
Continue reading "GY-530 VL53L0X Laser-Entfernungsmesser"
The SIM800L module enables communication via the GSM mobile phone network. In addition to SMS and the internet, voice calls are also supported, provided the speaker output and microphone input are brought out as pins. There are various modules for microcontroller tinkering. Among others, there is also an add-on for the Arduino Uno. The SIM808 and SIM900 modules are similar to the 800L and can usually be controlled with the same library.
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TTGO T-Call 1.3 ist ein ESP32 Modul, dass mit Hilfe des SIM800L Chips einen GSM Zugang bietet. Ich habe das Modul in Verbindung mit einer ThingsMobile Simkarte getestet. Fakten ESP32 und SIM800L Chip Micro-Sim Slot Antennenanschluss Reset Taster Anschluss für einen Akku USB 3.1 Typ C Anschluss Pinout Anwendungsbereiche GPS Tracker (Braucht GPS Modul) Smarte …
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