AnalogWrite on RAK3172

According to this manuel from RAK, there is a list of digital I/O available to use with digitalRead and digitalWrite. How about analog I/O (PWM)? I can only find the two analog input available. Is analogWrite available on RAK3172? And if that is the case, any information on the maximum frequency and resolution? I think the online documentation is missing this important information.

I didn’t try it and I do not know the frequency, but analogWrite is supported:

/**@par	Description
 *     	Writes an analog value (PWM wave) to a pin. Can be used to light a LED at varying brightnesses or drive a motor at various speeds. After a call to analogWrite(), 
 * 		the pin will generate a steady rectangular wave of the specified duty cycle until the next call to analogWrite()
 * @par	Syntax
 *	analogWrite(pin, value)
 * @param	pin		the pin which you want to read	
 * @param	value		the duty cycle: between 0 (always off) and 255 (always on)
 * @return	void
 * @par		Example
 * @verbatim
   int val = 0; // variable to write the LED pin
   bool state = false;
   bool ledSwitch = false;
   void valChage()
     state = !state;
     if(val == 0)
       ledSwitch = !ledSwitch;
   void setup() {
     // put your setup code here, to run once:
     pinMode(GREEN_LED, OUTPUT);
     pinMode(BLUE_LED, OUTPUT);
   void loop() {
     // put your main code here, to run repeatedly:
     if(val == 0 || val == 255)
     // To determine to make the led lighter or darker
     // To switch the lighting led
       analogWrite(GREEN_LED ,val); // Light the green led
       analogWrite(BLUE_LED, val); //Light the blue led

void analogWrite(uint8_t pin, int value);

For analogRead, at the moment only PB3 and PB4 are supported as analog inputs in RUI3.