Olimex ESP32-ADF Audio Development Board - including 2x3W Speakers
- Availability: Directly available from warehouse in Eindhoven
- SKU: 005380
€26.60
Ex Tax: €21.98
ESP32-ADF is a development board based on the ESP32 WROVER module. Additionally, this board features an audio amplifier, two speakers, stereo microphone and various (touch) buttons to control the device. With built-in Wi-Fi and Bluetooth, this board is ideal for IoT applications. The USB to serial converter makes it easy to program, even as an Arduino. The board has a micro USB connection with which it can be programmed and/or powered (micro USB cable not included). This board also supports Li-Po/Li-ion power and charging.
See the following page for more information: GitHub
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Olimex ESP32-ADF Audio Development Board - including 2x3W Speakers
, OL-ESP32-ADF
, With Bluetooth
Specifications
| General | |
| Brand | Olimex |
| Manufacturer model/SKU | ESP32-ADF |
| Model revision | C |
| Norm conformity | RoHS |
| Features | Battery charger Microcontroller SD-card adapter Audio amplifier Microphone Touch sensor Programmable button(s) |
| General physical appearance | |
| Main color | Red |
| Weight [g] | 26 (excluding speakers) |
| Dimension X [mm] | 83 |
| Dimension Y [mm] | 52 |
| Mounting options | Mounting hole(s) |
| Form factor | Module (general) |
| General electrical properties | |
| Minimum supply voltage [V DC] | 5 |
| Maximum supply voltage [V DC] | 5 |
| Minimum IO-pin input voltage [V] | 3.3 |
| Maximum IO-pin input voltage [V] | 3.3 |
| IO-pin output voltage [V] | 3.3 |
| Maximum IO-pin source current [mA] | 20 |
| Maximum IO-pin sink current [mA] | 28 |
| MCU/SoC | |
| Manufacturer | Espressif |
| Chip series | ESP32 |
| Maximum clock frequency [MHz] | 240 |
| Number of cores | 2 |
| Internal memory | |
| SRAM [KB] | 520 |
| PSRAM [MB] | 8 |
| Flash memory [MB] | 4 |
| EEPROM type | Emulated |
| Communication | |
| Hardware interface(s) | I2C I2S SPI UART PWM ADC DAC GPIO USB CDC |
| Number of IO-pins | 8 (all but one pulled-up) |
| Maximum available hardware PWM channels | 8 |
| Maximum available analog input pins (ADC) | 4 |
| DAC chip | ES8388 |
| DAC type | Audio DAC |
| Maximum available analog output pins (DAC) | 2 |
| DAC resolution [bit] | 24 |
| Maximum available hardware UART interfaces | 3 |
| Maximum available hardware I2C interfaces | 2 |
| Maximum available hardware SPI interfaces | 2 |
| USB to serial converter | CH340T |
| Supported SD card size | Micro SD |
| Wireless communication | |
| Interface(s) | Wi-Fi Bluetooth IR |
| Wi-Fi chip/SoC | ESP32 |
| Wi-Fi frequency [GHz] | 2.4 |
| Bluetooth chip/SoC | ESP32 |
| Bluetooth version | 4.2 |
| Supported Bluetooth standard(s) | LE Classic |
| IR receiver/transmitter | Receiver |
| Sound sensor | |
| Sensor (chip(s)) | ES8388 (CODEC) |
| Type | Microphone |
| Sensor technology | Electret capacitor |
| Audio amplifier | |
| Amplifier chip | PAM8003 |
| Number of (normal) channels | 2 |
| Maximum power per (normal) channel [W] | 1.0 |
| Minimum speaker impedance per (normal) channel [Ω] | 4 |
| Maximum speaker impedance per (normal) channel [Ω] | 8 |
| Battery circuit | |
| Battery charger chip/SoC | BL4054B |
| Supported battery chemistry | Li-ion Li-Po |
| Maximum charging voltage [V] | 4.2 |
| Maximum charging current [mA] | 455 |
| Adjustable charging current | No |
| Protection circuit | No |
| Connectors | |
| Power supply connector(s) | Micro USB female DC-jack 5.5/2.1mm female |
| IO-connector(s) | Pin header male (2.54mm) Micro USB female Audio jack 3.5mm female |
| Battery connector(s) | JST-PH (compatible) male |
| Speaker connector(s) | JST-PH (compatible) male |
| Wi-Fi/Bluetooth antenna connector | Built-in antenna |
| Package contents | |
| Package contents | 1x ESP32-ADF 2x 3W speakers |