Joy-it RB-Strompi-3 User guide
StromPi 3
StromPi 3
Publis hed: 15.1 0.2018 Copyright by J o y-IT 2
1. Introduction
2. Overview
3. Power Sources
4. Serial Console
5. Input Prioritization
6. Time-Controlled Applications
6.1 Real Time Clock
6.2 Shut-Down Timer & Power-Off Alarm
6.3 Alarm Mode
7. Support
8. EU Declaration of Conformity
TABLE OF CONTENTS
StromPi 3
Publis hed: 15.1 0.2018 Copyright by J o y-IT 3
Dear customer,
thank you for choosing our product.
In the following, we will show you what to observe during the use.
If you encounter any unexpected problems during use, please do not hesitate to contact us.
Under heavy load the StromPi 3 can heat up. Do not touch the board during
operation to avoid burns. Also allow a good air supply to prevent the unit from
overheating.
1. INTRODUCTION
2. OVERVIEW
StromPi 3
Publis hed: 15.1 0.2018 Copyright by J o y-IT 4
The StromPi 3 can be supplied from three different power sources.
In the event of a power failure, the StromPi 3 automatically switches continuously to the
power source configured as secondary.
MICROUSB
The StromPi 3 can, as usual, be powered via a microUSB connector.
WI DE-RANGE
In "Wide" mode, the StromPi 3 can be operated via a voltage source in the range of 6 - 61V.
Simply connect any power source, such as power supplies or an on -board power supply, to
the marked connector.
Attention! The voltage source must be in the range of 6 - 61V when switched on. Please pay
attention to the polarity to avoid damage to the Raspberry Pi and the StromPi.
3. POWER SOURCES
StromPi 3
Publis hed: 15.1 0.2018 Copyright by J o y-IT 5
BATTERY-UNIT
The StromPi3 can also be extended with an optional 1000mAh LiFePO4 battery to include a
rechargeable emergency power source.
The separately available battery unit is simply connected to the StromPi 3
and can then be prioritized as a voltage source.
With the GPIO bar in place, there are no restrictions on the use of the battery unit.
A special innovation of the StromPi 3 is the configuration option.
You can configure and adapt your StromPi 3 according to your wishes.
These include input prioritization, optional shutdown, alarm and power -off modes.
ACTIVATING THE SERIAL COMM UNI CATION
To use these functions, the module screen is required.
Open the console on your Raspberry Pi and install the module by entering the following
commands:
sudo apt-get install screen
4. SERIAL CONSOLE
sudo apt-get install python-serial python3-serial
StromPi 3
Publis hed: 15.1 0.2018 Copyright by J o y-IT 6
Add the following line to the end of the file:
dtoverlay=pi3-miniuart-bt
enable_uart=1
core_freq=250
Save the file with the key combination Ctrl+O and exit the file with the combination Ctrl+X.
sudo nano /boot/config.txt
If you are using a 3rd generation Raspberry Pi, it is now necessary to
deactivate the Bluetooth interface, otherwise the serial interface cannot be used for communication.
Open the config.txt file with the following command:
StromPi 3
Publis hed: 15.1 0.2018 Copyright by J o y-IT 7
In addition, it is necessary to activate the serial interface of the Raspberry Pis and to
deactivate the serial console.
You can do this either via the Raspberry Pi Configuration or via the Raspi -Config.
To do this via the Raspi-Config, enter the following command in a terminal window on your
Raspberry Pi:
Use the arrow keys on your keyboard to navigate to the "5 Interfacing Options" menu item.
Select "P6 Serial" here.
sudo raspi-config
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