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LoRaDunchy

★ 36 Open GitHub ↗

Lora board with Arduino nano compatibile pinout and simple battery management

// repository documentation

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# LoRaDunchy 
## Lora board with Arduino nano compatibile pinout and simple battery management

Small board with arduino nano compatibile pinout with power management and Murata ABZ LoRa module with STM32L0 microcontroller

## Features
* LoRa module: Murata ABZ
* Single cell LiPo cell charger on-board with charging signal internally connected to PA11 (via jumper)
* Buck/Boost switching power supply for delivering stable 3,3V regardless of the battery voltage
* Battery fuel gauge on-board to control the real status of the battery

Schematic diagram: 
![loradunchy_schematic_diagram](https://raw.githubusercontent.com/s54mtb/LoRaDunchy/master/hw/sch.PNG)

Board view: 
![loradunchy_board](https://raw.githubusercontent.com/s54mtb/LoRaDunchy/master/hw/board.PNG)

Bottom view (silk screen)
![loradunchy_bot?view](https://raw.githubusercontent.com/s54mtb/LoRaDunchy/master/hw/botview.PNG)

## Connector pinout

CN3				
 * 1 -	**PA9**	USART1_TX,	2C1_SCL	MCO	
 * 2 -	**PA10**	USART1_RX,	I2C1_SDA		
 * 3 -	**nRST**				
 * 4 -	**GND**				
 * 5 -	**NC**				
 * 6 -	**PB5**	SPI1_MOSI,	LPTIM1_IN1,	TIM3_CH2,	TIM22_CH2
 * 7 -	**PB6**	USART1_TX,	I2C1_SCL		
 * 8 -	**PB2**	LPTIM1_OUT			
 * 9 -	**PB7**	USART1_RX,	I2C1_SDA,	LPTIM1_IN2	
 * 10 -	**PA11**	SPI1_MISO,	EVENTOUT,	COMP1_OUT	
 * 11 -	**PH1**				
 * 12 -	**PA12**				
 * 13 -	**PB12**	SPI2_NSS,	EVENTOUT		
 * 14 -	**PB15**	SPI2_MOSI			
 * 15 -	**PB14**	SPI2_MISO,	I2C2_SDA,	TIM21_CH2

CN4				
 * 1 -	**V+**				
 * 2 -	**GND**				
 * 3 -	**nRST**				
 * 4 -	**5V**				
 * 5 -	**PA8**	I2C3_SCL,	EVENTOUT		
 * 6 -	**PA5**	SPI1_SCK,	TIM2_CH1		
 * 7 -	**PB8**	I2C1_SCL			
 * 8 -	**PB9**	I2C1_SDA			
 * 9 -	**PA4**				
 * 10 -	**PA3**	TIM21_CH2,	TIM2_CH4,	USART2_RX,	LPUART1_RX
 * 11 -	**PA2**	TIM21_CH1,	TIM2_CH3,	USART2_TX,	LPUART1_TX
 * 12 -	**PA0**	TIM2_CH1			
 * 13 -	**PH0**				
 * 14 -	**3V3**				
 * 15 -	**PB13**	SPI2_SCK,	I2C2_SCL,	TIM21_CH1	
 
 
## How to use with Keil uVision (free for STM32 F0/L0)

### Installation

* Download Keil MDK-ARM v5 from https://www.keil.com/demo/eval/arm.htm
* Run the downloaded MDK5xx.exe installer
* Install to any path you like. If you have existing MDK-ARM installations that you want to keep, select a new folder for MDK v5.
* Click Install to download and install the STM32F0 and STM32L0 Device Family Packs supplied by Keil:
![loradunchy_packinstaller](https://www2.keil.com/images/default-source/mdk5/stm32-m0-packinstaller.png)

### Activation

* Login with an account that has administration rights
* Right-click the µVision icon and select Run as Administrator... from the context menu.
* Open the dialog File — License Management... and select the Single-User License tab.
* Click the button Get LIC via Internet..., then click the button OK to register the product. This action opens the License Management page on the Keil web site.
* Enter the Product Serial Number 4PPFW-QBEHZ-M0D5M along with your contact information and click the button Submit. An e-mail is sent back with the License ID Code (LIC) within a few minutes.
* To activate the Software Product, enter the LIC in the field New License ID Code (LIC) of the dialog License Management... and click Add LIC.

## Project setup and configuration is available in the *SW* folder 
 
#### License
GNU General Public License

LoRaDunchy

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