Elecrow
Homefixer ESP8266 devboard
Another development board for ESP8266-12F. But this one is a bit different, made to be easy to set up without the need for additional hardware like programme...
Another development board for ESP8266-12F. But this one is a bit different, made to be easy to set up without the need for additional hardware like programmers and voltage regulators. A wide voltage range switching regulator enables the user to use different battery technologies from 1 AA cell up to LiPo cells. If you are using LiPo cells there is also a USB charger on the board. The ADC is connected to the battery with a voltage divider that you can turn off when not used to save power.
The board has been made as small as possible but still with a lot of functions and breadboard compatible.
Features
- Optimized for ultra low power and ease of use.
- One of the smallest devboard for ESP8266.
- Measure battery voltage through voltage divider with zero poweruse when not measuring.
- All pins except G15, Reset and Chip Enable exposed on the pinheader to the user.
- CP2104 usb to uart with auto-reset support for getting into bootload mode before firmware upload.
- LiPo charging from USB.
- Wide range supply voltage to work with many different battery configuration.
- Exposed setting pins for TSP61201.
- Deep sleep prewired, only need to connect with a solder jumper.
- Breadboard compatible.
Specifications
- ESP8266-12F
- Micro-usb for power and uploading of code.
- Battery voltage: 0.8-5.5V or USB powered.
- TPS61201 3.3V boost converter with built in LDO for >3.3V capability.
- LiPo charge current: 500mA (setable with change of resistor)
- ADC: 0-5V with voltage divider.
- Size: (LxW) 27 x 24 mm
Package list
- Homefixer ESP8266 devboard x 1
Wiki & External links
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- boost converter
- A boost converter is a power circuit that raises a lower input voltage to a higher output voltage. It matters here because the board can power a sensor that needs a higher supply voltage while still using a single connector for power and data.
- deep sleep
- Deep sleep is a low-power mode where the microcontroller turns off most functions while keeping just enough circuitry active to wake up later. It is important for battery-powered projects because it can greatly extend how long the device runs between charges.
- LiPo
- A lithium polymer rechargeable battery commonly used in portable electronics projects. It matters because LiPo batteries need correct charging circuitry and care, and this board includes hardware intended for that battery type.
- solder jumper
- A solder jumper is a small pair or group of pads on a circuit board that can be bridged or cut with solder to change a hardware setting. It matters because changing modes may require careful soldering rather than just changing software.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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Related Tutorials
Free guides on learn.littlebird.com.au
