diff --git a/readme.md b/readme.md
index 04a8e82..5b10fa7 100644
--- a/readme.md
+++ b/readme.md
@@ -22,23 +22,24 @@ This brief overview gives a glimpse of the variety of properties to consider whi
3. Interrupt optimization (trigger interrupts only if necessary, no periodic interrupt)
4. Control the load by 2 measurement unit: gate activation time or linearized relative power
5. Documented parameters to finely tune the library on your hardware and requirements
+6. Real-time monitor of AC frequency
Here the comparison against 3 similar and popular libraries:
-| | Dimmable Light for Arduino | [RobotDynOfficial/
RDBDimmer](https://github.com/RobotDynOfficial/RBDDimmer) | [circuitar/Dimmer](https://github.com/circuitar/Dimmer) | [AJMansfield/
TriacDimmer](https://github.com/AJMansfield/TriacDimmer) |
-|----------------------------------- |--------------------------------------------- |----------------------------------------------------- |---------------------------------- |---------------------------------- |
-| Multiple dimmers | yes | yes | yes | 2 |
-| Supported frequencies | 50/60Hz | 50Hz | 50/60Hz | 50/60Hz |
-| Supported architectures | AVR, SAMD, ESP8266, ESP32, RP2040 | AVR, SAMD, ESP8266, ESP32, STM32F1, STM32F4, SAM | AVR | AVR |
-| Control *effective* delivered power | yes, dynamic calculation | no | yes, static lookup table | no |
-| Predefined effects | no | yes, automatic fade to new value | yes, swipe effect | no |
-| Optional zero-crossing mode | no | no | yes | no |
-| Time resolution | 1us (2) | 1/100 of semi-period energy | 1/100 of semi-period length | 0.5us |
-| Smart interrupt management | yes, automatically activated only if needed | no | no | no |
-| Number of interrupts per semi-period (1) | number of instantiated dimmers + 1 | 100 | 100 | 3 |
-
-(1) In the worst case, with default settings\
-(2) If the hardware timer allows it, otherwise it will be lower
+| | Dimmable Light for Arduino | [RobotDynOfficial/
RDBDimmer](https://github.com/RobotDynOfficial/RBDDimmer) | [circuitar/Dimmer](https://github.com/circuitar/Dimmer) | [AJMansfield/
TriacDimmer](https://github.com/AJMansfield/TriacDimmer) |
+|----------------------------------------- |--------------------------------------------- |----------------------------------------------------- |---------------------------------------- |------------ |
+| Multiple dimmers | yes | yes | yes | 2 |
+| Supported frequencies | 50/60Hz | 50Hz | 50/60Hz | 50/60Hz |
+| Supported architectures | AVR, SAMD, ESP8266, ESP32, RP2040 | AVR, SAMD, ESP8266, ESP32, STM32F1, STM32F4, SAM | AVR | AVR |
+| Control *effective* delivered power | yes, dynamic calculation | no | yes, static lookup table | no |
+| Fade gradually to new value | no | no | yes, configurable speed | no |
+| Full-wave mode | no | no | yes (count mode) | no |
+| Time resolution | 1μs | 1/100 of semi-period length (83μs@60Hz) | 1/100 of semi-period energy (83μs@60Hz) | 0.5μs |
+| Smart interrupt management | yes, automatically activated only if needed | no | no | no |
+| Number of interrupts per semi-period (1) | number of instantiated dimmers + 1 | 100 | 100 | 3 |
+| Frequency monitor | yes | no | no | no |
+
+(1) In the worst case, with default settings
## Installation