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docs: tell people to buy ESP32 with 8 MB of flash

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Bernhard Kirchen 2024-05-30 17:58:00 +02:00
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docs/hardware_flash.md
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@ -10,13 +10,20 @@ Otherwise, read on to assemble your own components.
### ESP32 board
For ease of use, buy a "ESP32 DEVKIT DOIT" or "ESP32 NodeMCU Development Board" with an ESP32-S3 or ESP-WROOM-32 chipset on it.
For ease of use, buy a "ESP32 DEVKIT DOIT" or "ESP32 NodeMCU Development Board"
with an ESP32-S3 chipset on it, **with at least 8 MB of flash memory**.
Preferrably, the ESP32 should also have some embedded PSRAM. Look out for
labels like "N8R2", "N16R8", where the number after the N is the amount of
flash in Megabytes, and the number after the R is the amount of PSRAM in
Megabytes.
Sample Picture:
![NodeMCU-ESP32](nodemcu-esp32.png)
Also supported: Board with Ethernet-Connector and Power-over-Ethernet [Olimex ESP32-POE](https://www.olimex.com/Products/IoT/ESP32/ESP32-POE/open-source-hardware)
Also supported: Board with Ethernet-Connector and Power-over-Ethernet (PoE)
(select version with 8 MB of flash memory or more)
[Olimex ESP32-POE](https://www.olimex.com/Products/IoT/ESP32/ESP32-POE/open-source-hardware)
### NRF24L01+ radio board (See inverter table above for supported inverters)