updated h4s

jhansson-ard · jhansson-ard · commit e70837b81531 · 2025-05-28T15:50:59.000+02:00
diff --git a/content/hardware/11.accessories/modulino-nodes/modulino-buzzer/tutorials/how-buzzer-ardu/content.md b/content/hardware/11.accessories/modulino-nodes/modulino-buzzer/tutorials/how-buzzer-ardu/content.md
@@ -45,13 +45,13 @@ When scanning for I²C address on the bus, you might find the modulino using the
 Later in this article we teach how to [change the address](#how-to-change-i2c-address).
 
 
-### Pinout
+## Pinout
 
 The PKLCS1212E4001-R1 buzzer is the core component of this module. This audio output device is controlled by an onboard STM32 microcontroller, which supports digital communication (I²C), meaning it connects directly to the I²C bus on the module without requiring additional conversion circuitry.
 
 ![Arduino Buzzer Pinout](assets/BuzzerPinouts.png)
 
-#### 1x8 Header
+### 1x8 Header
 
 | Pin    | Function        |
 |--------|-----------------|
@@ -75,7 +75,7 @@ The PKLCS1212E4001-R1 buzzer is the core component of this module. This audio ou
 ![Direct control via signal](assets/buzzerPA0.gif)
 
 
-#### 1x4 Header (I2C)
+### 1x4 Header (I2C)
 
 The pinout for the Modulino Buzzer is shown below. While the recommended connection method is via the QWIIC connectors, this solderable header provides a connection option when using the modulino with a non-QWIIC compatible board.
 
diff --git a/content/hardware/11.accessories/modulino-nodes/modulino-distance/tutorials/how-distance-ardu/content.md b/content/hardware/11.accessories/modulino-nodes/modulino-distance/tutorials/how-distance-ardu/content.md
@@ -45,13 +45,13 @@ The default address for the Module is:
 
 ***Note: Since the address cannot be changed on this Modulino specifically, using two or more identical modules on the same I²C bus will result in address conflicts and cause communication issues.***
 
-### Pinout
+## Pinout
 
 The pinout for the Modulino Distance is shown below. Please note that the exposed solderable pins are directly connected to the QWIIC connectors using the same I²C interface.
 
 ![Arduino Distance Pinout](assets/DistancePinouts.png)
 
-#### 1x4 Header (Sensor GPIO)
+### 1x4 Header (Sensor GPIO)
 
 | Pin   | Function       |
 |-------|----------------|
@@ -65,7 +65,7 @@ The pinout for the Modulino Distance is shown below. Please note that the expose
 - **GPIO1: Digital Output** – General purpose digital output pin.
 - **XSHUT: Xshutdown** – Shutdown control pin for the sensor.
 
-#### 1x4 Header (I2C)
+### 1x4 Header (I2C)
 
 The pinout for the Modulino Buzzer is shown below. While the recommended connection method is via the QWIIC connectors, this solderable header provides a connection option when using the modulino with a non-QWIIC compatible board.
 
diff --git a/content/hardware/11.accessories/modulino-nodes/modulino-knob/tutorials/how-knob-ardu/content.md b/content/hardware/11.accessories/modulino-nodes/modulino-knob/tutorials/how-knob-ardu/content.md
@@ -17,7 +17,7 @@ The Modulino Knob is a modular sensor based on a quadrature rotary encoder that
 
 It uses the Modulino form factor, streamlining integration through the I2C protocol. It provides QWIIC connectors and exposed solderable pins (for boards without a QWIIC interface).
 
-### General Characteristics
+## General Characteristics
 
 The Modulino Knob has the following measurement specifications:
 
@@ -43,15 +43,15 @@ When scanning for I²C address on the bus, you might find the modulino using the
 Later in this article we teach how to [change the address](#how-to-change-i2c-address).
 
 
-### Pinout
+## Pinout
 
 The rotary encoder is the core component of this module. This input device is controlled by an onboard STM32 microcontroller, which supports digital communication (I²C), meaning it connects directly to the I²C bus on the module without requiring additional conversion circuitry.
 
 ![Arduino Knob Pinout](assets/KnobPinouts.png)
 
 The board also includes direct connections to the rotary encoder bypassing the built-in microcontroller.
 
-#### 1x10 Header
+### 1x10 Header
 
 | Pin   | Function       |
 |-------|----------------|
@@ -77,7 +77,7 @@ The board also includes direct connections to the rotary encoder bypassing the b
 - **PA0: Encoder A:**These pins connect directly to the rotary encoder's quadrature outputs.
 - **PA1: Encoder B:**These pins connect directly to the rotary encoder's quadrature outputs.
 
-#### 1x4 Header (I2C)
+### 1x4 Header (I2C)
 
 The pinout for the Modulino Knob is shown below. While the recommended connection method is via the QWIIC connectors, this solderable header provides a connection option when using the modulino with a non-QWIIC compatible board.
 
@@ -154,7 +154,7 @@ Each module should have a unique address on a chain if you plan to address them
 
 ## How To Use Your Modulino
 
-#### Installing The Modulino Library
+### Installing The Modulino Library
 
 You need the official Modulino library available [here](https://github.com/arduino-libraries/Modulino) to use the Modulino Knob.
 
diff --git a/content/hardware/11.accessories/modulino-nodes/modulino-movement/tutorials/how-movement-ardu/content.md b/content/hardware/11.accessories/modulino-nodes/modulino-movement/tutorials/how-movement-ardu/content.md
@@ -45,15 +45,15 @@ The default address for the Module is:
 When scanning for I²C address on the bus, you might find the modulino using the **Hardware I²C Address**. However, you should always use the **Modulino I²C Address** when using the official Modulino library.
 Later in this article we teach how to [change the address](#how-to-change-i2c-address).
 
-### Pinout
+## Pinout
 
 The pinout for the Modulino Movement is shown below. Please note that the exposed solderable pins are directly connected to the QWIIC connectors using the same I²C interface.
 
 ![Arduino Movement Pinout](assets/MovementPinouts.png)
 
 Depending on the board connected to the modulino, the I²C pin names to program it may differ. Please check the [board tutorials](https://docs.arduino.cc/hardware/) on your modulino's compatible board or the [Modulino library](https://github.com/arduino-libraries/Modulino/tree/main/docs) to learn more.
 
-#### 1x10 Header
+### 1x10 Header
 
 | Pin     | Function         |
 |---------|------------------|
@@ -79,7 +79,7 @@ Depending on the board connected to the modulino, the I²C pin names to program
 - **SDOAUX: Auxiliary Output** – Auxiliary data output pin.
 - **OCSAUX: Auxiliary Output** – Auxiliary output control signal pin.
 
-#### 1x4 Header (I2C)
+### 1x4 Header (I2C)
 
 | Pin   | Function     |
 |-------|--------------|
diff --git a/content/hardware/11.accessories/modulino-nodes/modulino-pixels/tutorials/how-pixels-ardu/content.md b/content/hardware/11.accessories/modulino-nodes/modulino-pixels/tutorials/how-pixels-ardu/content.md
@@ -27,13 +27,13 @@ The Modulino Pixels based on 8 LC8822-2020 addressable LEDs is capable of genera
 | Resolution (ADC) | Default           | -       | 12-bit  | -       | mcd  |
 | Communication    | I²C,USART,SPI | -       | I²C     | -       | -    |
 
-### Pinout
+## Pinout
 
 The LC8822-2020 addressable LEDs are the core components of this module. These RGB light output devices are controlled by an onboard STM32C011F4U6TR microcontroller, which supports digital communication (I²C), meaning it connects directly to the I²C bus on the module without requiring additional conversion circuitry.
 
 ![Modulino Pixels Pinout](assets/PixelsPinouts.png)
 
-#### 1x10 Header (LC8822-2020 and Microcontroller Signals)
+### 1x10 Header (LC8822-2020 and Microcontroller Signals)
 
 | Pin    | Function        |
 |--------|-----------------|
@@ -56,7 +56,7 @@ The LC8822-2020 addressable LEDs are the core components of this module. These R
 - **D0: Pixels Data Out**: Sends pixel data to addressable LED strips in a daisy chain configuration for lighting control.
 - **C0: Pixels Clock Out**: Provides clock signal synchronization for addressable LED strips, ensuring proper timing for pixel data.
 
-#### 1x4 Header (I2C)
+### 1x4 Header (I2C)
 
 The pinout for the Modulino Pixels is shown below. While the recommended connection method is via the QWIIC connectors, this solderable header provides a connection option when using the modulino with a non-QWIIC compatible board.
 
diff --git a/content/hardware/11.accessories/modulino-nodes/modulino-thermo/tutorials/how-thermo-ardu/content.md b/content/hardware/11.accessories/modulino-nodes/modulino-thermo/tutorials/how-thermo-ardu/content.md
@@ -41,15 +41,15 @@ The default address for the Module is:
 
 ***Note: Since the address cannot be changed on this Modulino specifically, using two or more identical modules on the same I²C bus will result in address conflicts and cause communication issues.***
 
-### Pinout
+## Pinout
 
 The pinout for the Modulino Thermo is shown below. Please note that the exposed solderable pins are directly connected to the QWIIC connectors using the same I²C interface.
 
 ![Arduino Thermo Pinout](assets/ThermoPinouts.jpg)
 
 Depending on the board connected to the modulino, the I²C pin names to program it may differ. Please check the [board tutorials](https://docs.arduino.cc/hardware/) on your modulino's compatible board or the [Modulino library](https://github.com/arduino-libraries/Modulino/tree/main/docs) to learn more.
 
-#### 1x4 Header (I2C)
+### 1x4 Header (I2C)
 
 The pinout for the Modulino Buzzer is shown below. While the recommended connection method is via the QWIIC connectors, this solderable header provides a connection option when using the modulino with a non-QWIIC compatible board.
 
