SBC-ESP8266 - Uncategorized Joy-It - Free user manual and instructions
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| Product Type | Single Board Computer (SBC) with ESP8266 WiFi SoC |
| Microcontroller | ESP8266EX (Tensilica L106 32-bit RISC) |
| Clock Speed | 80 MHz (up to 160 MHz) |
| Flash Memory | 4 MB (typical) |
| RAM | 64 KB instruction, 96 KB data |
| WiFi | 802.11 b/g/n (2.4 GHz), WPA/WPA2 |
| Digital I/O Pins | 11 GPIO (some multiplexed) |
| Analog Input | 1 ADC (0-1V) |
| Interface Protocol | SPI, I2C, UART, I2S |
| USB Interface | Micro USB (CH340G or CP2102, for power and programming) |
| Power Supply | 5V DC via USB or 3.3V via VIN pin (max 500mA) |
| Operating Voltage | 3.3V (onboard regulator) |
| Dimensions | Approx. 25 x 50 x 10 mm |
| Weight | ~10 g |
| Programming | Arduino IDE, ESP8266 core, NodeMCU, MicroPython |
| Onboard LED | GPIO2 (often for testing) |
| Reset/Flash Buttons | Reset and Flash (GPIO0) for programming mode |
| Operating Temperature | -40°C to +85°C |
| Suitable For | IoT projects, home automation, sensor networks, prototyping |
Frequently Asked Questions - SBC-ESP8266 Joy-It
How do I connect the SBC-ESP8266 to my computer?
Use a micro USB cable. The board will appear as a serial port (e.g., COM3 on Windows, /dev/ttyUSB0 on Linux). Ensure you have the CH340 or CP2102 drivers installed.
Which IDE should I use to program this board?
The most common is the Arduino IDE with the ESP8266 board package installed. Alternatively, you can use NodeMCU firmware with Lua, or MicroPython.
How do I put the board into flash mode?
Hold the Flash button (GPIO0), then press and release the Reset button, then release Flash. The board will enter programming mode, shown by a slow blink of the built-in LED.
What is the maximum current I can draw from the 3.3V pin?
The onboard voltage regulator can supply up to 500 mA, but total consumption (including ESP8266) should not exceed that. For high current loads, use an external regulator.
Can I power the board with batteries?
Yes, you can supply 5V via the USB port or directly to the 5V pin. For lower voltage, use a step-up converter to 5V or power via the 3.3V pin (but bypass regulator, max 3.6V).
How do I connect a sensor or actuator?
Use the GPIO pins. Most sensors work at 3.3V logic; for 5V sensors, use a level shifter. Power sensors from the 3.3V or 5V pin as needed. Refer to pinout for I2C, SPI, etc.
My board doesn't show up in the IDE. What should I do?
Check the USB cable (data-capable). Install the correct USB-to-serial driver. Try a different USB port. If still not detected, the board may be defective or in a strange mode.
What is the range of the WiFi?
Typical indoor range is about 30-50 meters (line of sight). Walls reduce range. External antenna can improve it, but this board uses an onboard PCB antenna.
How do I reset the board to default firmware?
You can erase the flash by uploading an empty sketch or using the ESP8266 Flash Download Tool. Enter flash mode and erase the entire flash memory.
Is this board compatible with NodeMCU firmware?
Yes, most SBC-ESP8266 boards are compatible. Download the NodeMCU firmware binary and flash it using the ESP8266 Flasher tool. Then use ESPlorer to upload Lua scripts.
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USER MANUAL SBC-ESP8266 Joy-It
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Product information
Brand : Joy-It
Model : SBC-ESP8266
Category : Uncategorized