Tasmota/tasmota/xdrv_33_nrf24l01.ino

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2020-01-01 18:09:20 +00:00
/*
xdrv_33_nrf24l01.ino - nrf24l01 support for Tasmota
Copyright (C) 2020 Christian Baars and Theo Arends
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This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
--------------------------------------------------------------------------------------------
Version yyyymmdd Action Description
--------------------------------------------------------------------------------------------
2020-06-24 15:20:07 +01:00
0.9.0.1 20200624 changes - removed unused legacy code
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---
0.9.0.0 20191127 started - further development by Christian Baars
forked - from arendst/tasmota - https://github.com/arendst/Tasmota
*/
#ifdef USE_SPI
#ifdef USE_NRF24
/*********************************************************************************************\
* NRF24l01(+)
*
* Usage: 5 SPI-data-wires plus VVC/ground, use hardware SPI, select GPIO_SPI_CS/GPIO_SPI_DC
\*********************************************************************************************/
#define XDRV_33 33
#include <RF24.h>
const char NRF24type[] PROGMEM = "NRF24";
struct {
uint8_t chipType = 0; // NRF24l01 active: 32 - NRF24L01 , 43- NRF24L01+ ... we mis-use ascii-codes
} NRF24;
/********************************************************************************************/
RF24 NRF24radio;
bool NRF24initRadio()
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{
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NRF24radio.begin(Pin(GPIO_SPI_CS),Pin(GPIO_SPI_DC));
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NRF24radio.powerUp();
if(NRF24radio.isChipConnected()){
DEBUG_DRIVER_LOG(PSTR("NRF24 chip connected"));
return true;
}
DEBUG_DRIVER_LOG(PSTR("NRF24 chip NOT !!!! connected"));
return false;
}
bool NRF24Detect(void)
{
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if (PinUsed(GPIO_SPI_CS) && PinUsed(GPIO_SPI_DC)) {
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if(NRF24initRadio()){
NRF24.chipType = 32; // SPACE
AddLog_P(LOG_LEVEL_INFO,PSTR("NRF24L01 initialized"));
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if(NRF24radio.isPVariant()){
NRF24.chipType = 43; // +
AddLog_P(LOG_LEVEL_INFO,PSTR("NRF24L01+ detected"));
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}
return true;
}
}
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return false;
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xdrv33(uint8_t function)
{
bool result = false;
if (FUNC_INIT == function) {
result = NRF24Detect();
}
return result;
}
#endif // USE_NRF24
#endif // USE_SPI