Note: FIREBEETLE 2 and FIREBEETLE pin and size are not compatible, and the expansion board is not compatible!
The FIREBEETLE 2 ESP32-E is a main control board based on the ESP-WROOM-32E dual-core chip, which is designed specifically for the IOT.
It supports WIFI and Bluetooth dual-mode communication and has the characteristics of compact size, ultra-low power consumption, on-board charging circuit, easy interface and so on.
By connecting to iot platforms such as IFTTT, you can easily create your own featured iot smart home system.
The FIREBEETLE 2 ESP32-E deeply supports ARDUINOIDE programming, and will soon support SCRATCH graphical programming and MICROPYTHON programming.
FIGURE 1. BOARD OVERVIEW
FIGURE 2.PINOUT
What is the difference between the FIREBEETLE 2 ESP32-E and FIREBEETLE 2 ESP32?
Recently, Le Xin released a wafer-level improvement to its ESP32 family of products, ESP32-E.
The main changes of the ESP32-E compared to the ESP32 are as follows:
1. Fixed PSRAM CACHE issue
2. Fixed the "Dual-core CPU read error may occur when reading different address Spaces" issue.
3. In response to the customer's report of "Under the ESP32 hardware configuration, the 32.768 KHZ crystal oscillator has a small probability of not starting normally"
The stability of 32.768 KHZ crystal oscillator is optimized.
4. Fixed fault injection issues related to "Secure boot" and "Flash encryption".
5. Optimization: The minimum bandwidth supported by the CAN module has been expanded from 25 KHZ to 12.5 KHZ.
ESP32 dual-core low power control, power consumption as low as 10μA
WIFI+BT4.0 wireless dual mode module
GDI display interface, single cable connected to the display
Onboard charging circuit and PH2.0 lithium battery interface
Operating voltage: 3.3V
Input voltage: 3.3V~5.5V
Support USB charging
Processor: TENSILICA LX6 dual-core processor (one core for high-speed connection;
Main frequency: 240MHZ
SRAM: 520KB
FLASH: 32MBIT
WI-FI standard: FCC/CE/TELEC/KCC
WI-FI protocol: 802.11B /G/N/D/E/I/K/R (802.11N, speeds up to 150 MBPS), A-MPDU and A-MSDU aggregation, support for 0.4US protection interval
Frequency range: 2.4~2.5 GHZ
Bluetooth protocol: Compliant with Bluetooth V4.2BR /EDR and BLE standards
Bluetooth audio: CVSD and SBC audio
Frequency range: 2.4~2.5GHZ
On-chip clock: 40MHZ crystal, 32.768KHZ crystal
Digital I/O X18
Simulate input X11
SPI X1
I2C X1
I2S X1
RGB_LED: WS2812
Operating temperature: -25℃~+85℃
Module size: 25.4MM × 60MM
Mounting hole size: aperture 2.0MM
Weight: 13.0G
[DFR0654-F]FIREBEETLE 2 BOARD ESP32-E(Pre-welded bar Master) (V1.0) Module X1
18PIN-2.54MM spacing pin X1
18PIN-2.54MM spacing bus X1
14PIN-2.54MM spacing pin X1
14PIN-2.54MM spacing bus X1
