SI4735 | SI473X Library for Arduino
kandi X-RAY | SI4735 Summary
kandi X-RAY | SI4735 Summary
The SI4732-A10 and SI4735-D60 are DSP radio receivers IC from Silcon Labs. They have great performance on AM, SSB (LW/MW/SW) and FM (VHF) from 64 to 108 MHz. It is important to note that the engineers and programmers at Silicon Labs did an excellent job by implementing all the internal resources in this IC family. This library implements just the interface that allows you to use the SI473X resources with Arduino based board controller. The SI473X can be programmed by sending commands and getting responses. You can control it via a microcontroller like Arduino using I2C communication protocol. To make the SI473X perform an action, the microcontroller has to send a set of bytes (command and arguments) that the device interprets and executes the given command.
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SI4735 Key Features
SI4735 Examples and Code Snippets
Community Discussions
Trending Discussions on Internet of Things (IoT)
QUESTION
I have js files Dashboard and Adverts. I managed to get Dashboard to list the information in one json file (advertisers), but when clicking on an advertiser I want it to navigate to a separate page that will display some data (Say title and text) from the second json file (productadverts). I can't get it to work. Below is the code for the Dashboard and next for Adverts. Then the json files
...ANSWER
Answered 2020-May-17 at 23:55The new object to get params in React Navigation 5 is:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install SI4735
Try to follow what the Silicon Labs recommends;
Start building the minimum circuit and test it;
Check if the Si47XX RESET pin (15 on SSOP version or 5 on QFN version) is connected on your MCU (Arduino) pin defined as RESET the (the most of schematics and examples of this project this pin is the digital pin 12);
Use the minimum sketch to test the minimum circuit. The first three examples of this project (see examples folder) can be used to test the minimum circuit;
Try not improvising the I²C bus connection. Start using a 3.3V MCU (Arduino Pro Mini 8MHz or DUE, ESP32 or other 3.3V device) to connect with SI4735;
If you are using the Arduino Pro Mini 3.3V board, select the correct Processor on Arduino IDE (ATmega328, 3.3V, 8MHz);
Some devices provide internal pull-up resistors that in some cases can be enabled or disabled. Also, the capacitance of the I²C bus is another variable that have be considered to select the right resistor values. However, that capacitance is not easy to be measured. For these reasons, it can be a liitle dificult calculate the right resitor values at first. That said, start with a high pullup resistor to I²C bus and then reduce it until the best value. For example: start with 10K and try to reduce the value to 4,7K, 3,3K, 2.2K etc. Select the lowest resistor you can.
I²C bus devices are available in different speeds. If you are using an I²C display device, check if its speed is compatible with the Si47XX and also with the current speed used by the master MCU;
Using different voltage levels between I²C devices can be unsafe and can destroy parts connected on I²C bus, specially the Si47XX;
It is important to wire all your I²C devices on the same common ground.
If you are using Arduino Mini Pro, UNO or similar, pay attention to the pin 13 and the use of internal pull-up resistor. This pin has a LED and a resistor connected on the board. When this pin is set to HIGH, the LED comes on. If you use the internal pull-up resistor of the pin 13, you might experiment problem due to the drop voltage caused by the LED circuit. If this occurs in your project, you can do: Use the pin 14. This pin is the A0 (Analog). But you have to refer it by 14 to use it as digital pin; Change the circuit and sketch to use external pull-up on pin 13; Remove the LED or resitor connected to the led from the board.
Use only batteries to power your circuit. Receptions in LW, MW and SW can be seriously harmed by the use of power supplies connected to the grid.
See some Shortwave antenna configuration on Si47XX ANTENNA, SCHEMATIC, LAYOUT, AND DESIGN GUIDELINES; AN383
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