Last Updated on 18. October 2026 by SuffocationLink status: OK
I have at the same time as the ESP Lora 32Link status: OK auch noch die kleinere Version bestellt. Sie ist etwas günstiger (~17€), ohne externe Antenne und ca. 2mm kürzer. Bis auf die Netzwerk Sendestärke scheinen die beiden Boards sich nur minimal zu unterscheiden. Auch fehlt hier der Lora Transmitter.
It just fits on a breadboard, leaving one pin free on each side for connections. The pins were included in my case and need to be soldered on yourself.
In diesem Beitrag sind nur die Eigenheiten beschrieben, für die Programmierung, Fehler … sei auf den Lora ContributionLink status: OK referred.
View
Front view
Display, zwei Knöpfe und USB Anschluss.
Rear view
Anschluss ( JST-PH 2Pin 1.25mm) für einen Akku.
3D object
Overview
| WiFi Kit 32 | |
|---|---|
| Manufacturer | Heltec |
| Processor | ESP 32 |
| Kernel | 2 |
| Tact | 240 MHz |
| Flash | 4 MB |
| SRAM | 520 KB |
| Digitale Pins | 34 / 28 |
| Analoge Eingänge | 18 |
| PWM-Pins | 16 |
| UART | 3 |
| SPI | 2 |
| I²C | 2 |
| WLAN | 2,4 GHz 802.11 b/g/n · WEP / TKIP / CCMP (AES) |
| Bluetooth | 4.2 |
| USB | 1 Micro CP2102 |
| Video | 0.96 inch OLED display |
| Operating voltage | 3,3 V |
| Input voltage | 3,3 V-Pin 2,7-3,5 V · USB/5 V-Pin 4,7-6 V · Akku 3,3-4,2 V |
| Abmessungen | 51 x 25,5 x 10,6 mm |
Pinning
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/blob/master/PinoutDiagram/WIFI%20Kit%2032.pdfLink status: Broken
Link status: OKPinoutLinkLink status: OK
Conclusion
Das ESP32 WiFi Kit 32 Board ist netzwerktechnisch nicht so gut ausgestattet wie sein großer Bruder, Laura Link status: OKis missing here. Anyone who doesn't need long-distance communication will also be well served by the slightly cheaper board.
Problems
The USB port is not being recognised correctly.
This allows Zadig Link status: UnknownHelp.
Related Posts
Sources
https://en.wikipedia.org/wiki/ESP32Link status: OK
http://esp32.net/Link status: OK
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series#instructionsLink status: OK
https://www.heise.de/make/artikel/Grosser-Bruder-Espressif-ESP32-3256039.htmlLink status: Unknown
https://github.com/espressif/arduino-esp32/issues/758Link status: OK
Manufacturer's websiteLink status: Broken
| Date | Change | Author |
|---|---|---|
| 18.10.2026 | TablePress-Tabelle durch Datenblock aus dem Modell ersetzt | Suffocation |
| 08.10.2026 | Überschriften-Hierarchie korrigiert (H1→H2, Unterebenen eine Stufe tiefer) | Suffocation |
| 03.10.2026 | Rechtschreibung korrigiert: Tippfehler, Kommas, Grammatik Log-Liste eingefügt | Suffocation |
| 20.06.2018 | Post created | Suffocation |
Thanks for the tip, the image was from the manufacturer, weird, right? ;). I have replaced it with the current version.
The pinout diagram is mirrored! If it were the underside, it would be correct. At the manufacturer, you can find a correct pinout, but also with the underside. It was probably copied from that.
A single core?! Does the ESP32 WiFi Kit 32 actually only have one core?
Thanks for the tip.
According to the datasheet, the ESP32 has 1 or 2 cores, depending on the version. (All versions except the ESP32-S0WD have 2 cores)
The Heltec board has a two-core controller installed.
I have adjusted the table accordingly.