Selecting Modules
As shown in Table 5.6, in terms of the type of antenna, ESP32-C3 modules can be divided into PCB antenna modules and IPEX external antenna modules; in terms of size and pins, they can be divided into WROOM series and MINI series. Each module has two temperature range versions: -40 ~ 85 ℃ version and -40 ~ 105 ℃ version, suitable for smart lights of different temperature requirements. For lighting products such as LED bulbs which characterise high internal temperature, it is recommended to use the -40 ~ 105 ℃ module. For other lighting products which do not have high internal temperature, the -40 ~ 85 ℃ module is suitable.
Table 5.6. ESP32-C3 modules
| Module | Antenna | Temp (℃) | Size (mm) | Image |
|---|---|---|---|---|
| ESP32-C3-WROOM-02 | PCB antenna | -40 ~ 85 ℃/ -40 ~ 105 ℃ | 18×20×3.2 |  |
| ESP32-C3-WROOM-02U | IPEX external antenna | -40 ~ 85 ℃/ -40 ~ 105 ℃ | 18×14.3×3.2 |  |
| ESP32-C3-MINI-1 | PCB antenna | -40 ~ 85 ℃/ -40 ~ 105 ℃ | 13.2×16.6×2.4 |  |
| ESP32-C3-MINI-1U | IPEX external antenna | -40 ~ 85 ℃/ -40 ~ 105 ℃ | 13.2×12.5×2.4 |  |
📌 Note
You can also select one module from ESP8685-WROOM-01 to ESP8685-WROOM-07 series for a smaller package. For more information, please visit products.espressif.com.