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RFM75 2.4 GHz module (HopeRF)
Delivery within 2 to 4 business days.
2.4 GHz transceiver, nRF24L01-compatible, 4 dBm, SPI. For a short link between two boards, without Wi-Fi or Bluetooth.
Plugs into this board
RFM110 433 MHz OOK transmitter (HopeRF)
Transmit-only OOK module, 240 to 480 MHz, 11 dBm. Tiny and cheap, for building a remote or replaying a learned code.
Delivery within 2 to 4 business days.
ESP32-S3-WROOM-1 module 4 MB (Espressif)
Entry version of the ESP32-S3-WROOM-1: 4 MB flash, no PSRAM, PCB antenna. Enough for a simple sensor or actuator.
Delivery within 2 to 4 business days.
ESP32-S3-MINI-1 module 8 MB (Espressif)
ESP32-S3-MINI-1 module, 8 MB flash, PCB antenna, compact 15.4 x 20.5 mm. The module used on the ISNO Super board.
Delivery within 2 to 4 business days.
ESP32-C6-WROOM-1U module 16 MB, external antenna
One module, several protocols: Wi-Fi 6, BLE 5.3, plus Zigbee and Thread, with 16 MB of flash. The external antenna connector is what gets it out of a metal enclosure, where a printed antenna would go dead.
Delivery within 2 to 4 business days.
ESP-WROOM-02U module 4 MB, external antenna
ESP8266 Wi-Fi module in a shielded can, 4 MB flash, external antenna connector. Simple, proven and cheap.
Delivery within 2 to 4 business days.
ESP32-WROOM-32D module 16 MB (Espressif)
First-generation ESP32 module, 16 MB flash, 20 dBm Wi-Fi. The proven D version, still the cheapest route to a connected device.
Delivery within 2 to 4 business days.
ESP32-S3-WROOM-1U module 8 MB, external antenna
ESP32-S3 module with 8 MB flash, no PSRAM, external antenna connector. The right trade-off when the case blocks a printed antenna.
Delivery within 2 to 4 business days.
ESP32-WROVER-E module 16 MB + 8 MB PSRAM
The WROVER is the classic ESP32 with 8 MB of extra PSRAM: 16 MB flash, Wi-Fi and Bluetooth, PCB antenna. That memory makes all the difference once you handle images or large buffers.
Delivery within 2 to 4 business days.