The ESP32-CAM (AI-Thinker HK-ESP32-CAM-MB) is a 39.8×27mm WiFi+Bluetooth camera module based on the ESP32-S SoC with dual-core LX6 CPUs, 8MB PSRAM, and an OV2640 camera.
| Parameter | Value |
|---|
| Operating voltage | 4.75–5.25V |
| SPI Flash | 32Mbit (4MB) |
| RAM | Internal 520KB SRAM + External 8MB PSRAM |
| Wi-Fi | 802.11 b/g/n/e/i |
| Bluetooth | 4.2 BR/EDR + BLE |
| Interfaces | UART, SPI, I2C, PWM, ADC, DAC |
| IO pins | 9 available |
| Dimensions | 39.8 × 27 mm |
| Weight | 10g |
| Package | DIP-16 |
| Parameter | Value |
|---|
| Architecture | Dual-core Xtensa LX6, 7-stage pipeline |
| Clock range | 80–240 MHz |
| Performance | Up to 600 DMIPS |
| Parameter | Value |
|---|
| Sensor | OV2640 (also supports OV7670) |
| Image output | JPEG (OV2640 only), BMP, Grayscale |
| Built-in flash LED | Yes (GPIO4) |
| Connector | FPC |
| Standard | Power |
|---|
| 802.11b | 17 ± 2 dBm (@11Mbps) |
| 802.11g | 14 ± 2 dBm (@54Mbps) |
| 802.11n | 13 ± 2 dBm (@MCS7) |
| Mode | Sensitivity |
|---|
| CCK, 1Mbps | −90 dBm |
| CCK, 11Mbps | −85 dBm |
| 6Mbps (1/2 BPSK) | −88 dBm |
| 54Mbps (3/4 64-QAM) | −70 dBm |
| MCS7 (65Mbps, 72.2Mbps) | −67 dBm |
| Parameter | Value |
|---|
| Type | Onboard PCB antenna |
| Gain | 2 dBi |
| Spectrum range | 2400–2483.5 MHz |
| IPEX connector | Available for external antenna |
| Mode | Current @ 5V |
|---|
| Flash LED off | 180 mA |
| Flash LED max brightness | 310 mA |
| Deep sleep | 6 mA (minimum) |
| Modem sleep | 20 mA (minimum) |
| Light sleep | 6.7 mA (minimum) |
WPA / WPA2 / WPA2-Enterprise / WPS
| Parameter | Value |
|---|
| Operating temperature | −20°C to 70°C |
| Storage temperature | −40°C to 125°C |
| Storage humidity | < 90% RH |
| Parameter | Value |
|---|
| TF (microSD) card | Up to 4GB |
| SD bus mode | 4-bit (default) or 1-bit |
| Serial port rate | 115200 bps (default) |
- ESP32-S module (with onboard PCB antenna)
- IPEX connector (external antenna option)
- Tantalum capacitor
- Voltage regulator chip
- Reset button
- TF card holder (microSD slot)
- Voltage regulator chip
- FPC camera connector
- Flash lamp (white LED on GPIO4)
- PSRAM chip
| Feature | ESP32-CAM | ESP32-CAM-MB |
|---|
| USB-to-serial (CH340G) | No | Yes |
| Automatic download | No | Yes |
| Fly wire needed for flash | Yes | No |
| Direct development | No | Yes |