Hi there!
I was searching for NRF24L01 transceiver and found MCU STC15F204 Wireless Development Board + NRF24L01+ Wireless Serial Module. What is STC15F204 for?
Google is not giving me proper results.
Thanks!
The STC15L204 is converting the NRF24L01+ wireless to/from a UART serial data.
Thank you for your response.
What is it used for? Trivial question, but can it receive/transmit data from different transceivers? I mean, e.g. one master station receives data from other slave stations simultaneously. Actually I would like to create a online data monitoring system to receive data from various places wirelessly. Over the project want to learn related things that can be useful.
I am newbie, so have a trouble understanding the use of this UART device.
nebulae:
What is it used for? Trivial question, but can it receive/transmit data from different transceivers? I mean, e.g. one master station receives data from other slave stations simultaneously.
Not simultaneously in the literal sense but I think you can have several of these all talking to each other or a central device.Actually I would like to create a online data monitoring system to receive data from various places wirelessly. Over the project want to learn related things that can be useful.
There are several tutorials on using these transceivers if you search...
http://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-HowTo
nRF24L01 and UNO R3 Tutorial - Project Guidance - Arduino Forum
Getting Started with nRF24L01+ on Arduino | maniacbug
to name a few.I am newbie, so have a trouble understanding the use of this UART device.
You probably don't need the extra bit that converts the wireless data to Serial (UART) so this will make it a bit cheaper. you only need this to send/receive radio signals. (I have no affiliation to the eBay site, it was just the first one I found.)
Very helpful feedback. Everything that I need. Thanks!
Could you also explain what STC15L204 used for? I mean as a UART device. I'm really curious about it. On the internet I didn't found someone that used this module.
nebulae:
Could you also explain what STC15L204 used for? I mean as a UART device. I'm really curious about it. On the internet I didn't found someone that used this module.
It just converts the SPI data the NRF24L01 interface uses into serial (UART) data.
SPI to UART.. that is somewhat clear. However how one is setting up the nRF2401L module? Frequency, channel, packet size etc.. Is there a "language" similar to the AT commands that are doing that? I was about to jump in and buy couple of these modules however there is absolutely no documentation (ZERO) on the internet about them. Anybody with a link ? A datasheet?
So, if the STC15L204 is a SPI to uART converter for the nRF24L01, can we use this module like a classic uART device, with commands like "Serial.print", "Serial.println", "Serial.write", ... ?
Thanks !!!
I have one of these and did a quick hunt for some details. Not much out there but there is some source code.. Here are the links I found
Shows the board as if you can order it here
Some details including source code and schematic here Also shows it as a retired product.
Hope this helps...
One small correction : The STF15F204 is not a "SPI to UART" converter per se. It's a chinese microcontroller (like the ATmega), presumably with a 8051 core (unclear) and some additional low cost peripherals (ADC). So in its combination with the nRF24, it is programmed to convert SPI to UART.
That's why there are also these (unused) P3.x or P1.x pins on the two sides of your pictures.
In another usage, it's programmed as a very cheap real-time clock (google "Banggood digit clock" for example).
It's UART not uART. Lowercase u in an abbreviation (particularly at the front) stands for "micro"; this is from units, where u (or the greek letter mu, which looks almost exactly like a u) is used for same, for example, a 1 microfarad capacitor will be marked 1 uF. But that's not what the U in UART stands for - it's Universal Asynchronous Receiver/Transmitter
And yeah, that board is a serial device, so you talk to it with commands over Serial, with serial.print() and the like. See the documentation from the manufacturer for details on what commands and baud rate.
Can Someone Help Me to make It work ?
I've baught one too but I've got no result at all... The device made nothing so if anyone could help me ?
Any other information? I would also like to know if there is a list of "text" commands (eg. AT commands for the ESP8266) to manage the NRF905 device using a serial port.
https://www.electrodragon.com/w/index.php?title=NRF24L01&redirect=no
looks to have some docs