Hello,
I have a Flysky RX that can transmit telemetry to my Flysky TX, thru IBUS. I want to use it with STM32 bluepill, as I use the bluepill for all of my projects. However, I get compillation error. This error is not there, when compile to f.ex Mega2560.
Q: How can I get this to compile? 
Error message:
C:\Users\alfa\Documents\Arduino\libraries\iBUSTelemetry-Arduino-master\iBUSTelemetry.cpp:22:30: fatal error: util/delay_basic.h: No such file or directory
#include <util/delay_basic.h>
^
compilation terminated.
exit status 1
Error compiling for board Generic STM32F103C series.
This is the example code for iBUSTelemetry.h:
#include <iBUSTelemetry.h>
#define UPDATE_INTERVAL 500
iBUSTelemetry telemetry(11); // I use only PCINT0 interrupt vector, so you can use D8 to D13 pins.
uint32_t prevMillis = 0; // Necessary to updateValues() method. Look below.
float i = 0;
void setup()
{
telemetry.begin(); // Let's start having fun!
telemetry.addSensor(0x01); // You can use sensors definitions from iBUSSensors.h instead of numbers.
// Ex.: telemetry.addSensor(IBUS_MEAS_TYPE_TEM);
telemetry.addSensor(IBUS_MEAS_TYPE_GPS_STATUS);
telemetry.addSensor(IBUS_MEAS_TYPE_SPE);
telemetry.addSensor(IBUS_MEAS_TYPE_GPS_LAT);
telemetry.addSensor(IBUS_MEAS_TYPE_ARMED);
telemetry.addSensor(IBUS_MEAS_TYPE_FLIGHT_MODE);
telemetry.addSensor(IBUS_MEAS_TYPE_ALT);
}
void loop()
{
updateValues(); // Very important! iBUS protocol is very sensitive to timings.
// DO NOT USE ANY delay()! Look at updateValues() method.
// It's an example of how to use intervals without delays.
telemetry.run(); //It must be here. Period.
}
void updateValues()
{
uint32_t currMillis = millis();
if (currMillis - prevMillis >= UPDATE_INTERVAL) { // Code in the middle of these brackets will be performed every 500ms.
prevMillis = currMillis;
telemetry.setSensorValueFP(1, i); // Now, you have two ways to set sensors values. Using floating point variables
// or directly in 32bit integer, but then you have to format variable by yourself.
// Ex.: telemetry.setSensorValueFP(1, 24.45); is equivalent to telemetry.setSensorValue(1, 2445);
// The values differ for different sensors.
telemetry.setSensorValue(2, telemetry.gpsStateValues(3, 8)); // As GPS status consists of two values,
// use gpsStateValues(firstVal, secondVal) to set it properly.
telemetry.setSensorValue(3, 123 * 10);
telemetry.setSensorValue(4, 179583647); // You can set LAT / LON using FP metohod, but due to fact floats have only 6 digits precision,
// your values on tx may be corrupted in some cases. It's better to use setSensorValue().
telemetry.setSensorValue(5, UNARMED); // ARMED / UNARMED or 1 / 0 could be used.
telemetry.setSensorValue(6, LOITER); // Available flight modes: STAB 0
// ACRO 1
// AHOLD 2
// AUTO 3
// GUIDED 4
// LOITER 5
// RTL 6
// CIRCLE 7
// PHOLD 8
// LAND 9
telemetry.setSensorValueFP(7, 54.87);
i += 0.1;
if (i > 50)
i = 0;
// These were the most difficult sensors to use. I hope that this library will be useful for you and will make your work easier. :)
}
} /* updateValues */