diff --git a/docs/programming/_index.md b/docs/electronics/_index.md
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rename to docs/electronics/_index.md
diff --git a/docs/electronics/inventory.md b/docs/electronics/inventory.md
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+# Inventory
+
+## Motors
+
+| Item                             | Qty |
+| :------------------------------- | :-- |
+| DC motor                         | 2   |
+| DC motor driver L298N            | 1   |
+| Servo motor SG90                 | 2   |
+| Servo motor, unmarked            | 1   |
+| Stepper motor 28BYJ-48           | 2   |
+| Stepper motor controller X113647 | 2   |
+
+## EM sensors
+
+| Item                        | Qty |
+| :-------------------------- | :-- |
+| Light sensor TEMT6000       | 1   |
+| Infrared sensor Flying-Fish | 23  |
+| PIR Motion detector XC4444  | 1   |
+| RFID card                   | 1   |
+| RFID fob                    | 1   |
+| RFID sensor RFID-RC522      | 1   |
+
+## Sonic sensors
+
+| Item                      | Qty |
+| :------------------------ | :-- |
+| Sound sensor              | 1   |
+| Ultrasonic sensor HC-SRO4 | 2   |
+
+## Other sensors
+
+| Item                       | Qty |
+| :------------------------- | :-- |
+| Water sensor               | 1   |
+| Triple axis compass SY1921 | 1   |
+
+## Mechanical sensors and inputs
+
+| Item                      | Qty |
+| :------------------------ | :-- |
+| Joystick                  | 1   |
+| Multimedia remote control | 2   |
+| Potentiometer, 10kΩ       | 2   |
+| Potentiometer, 1kΩ        | 1   |
+| Potentiometer, 5kΩ        | 1   |
+| Potentiometer, small 10kΩ | 1   |
+| Thumb joystick            | 1   |
+| Touchpad                  | 1   |
+
+## Power
+
+| Item               | Qty |
+| :----------------- | :-- |
+| Battery pack 6x AA | 1   |
+| Battery pack 9V    | 1   |
+
+## Digital output
+
+| Item                           | Qty |
+| :----------------------------- | :-- |
+| LCD display 1602A with pins    | 1   |
+| LCD display 1602A without pins | 1   |
+| Digital LED display sets       | 2   |
+| Display driver MAX7219CNG      | 2   |
+
+## Arduino
+
+| Item                                  | Qty |
+| :------------------------------------ | :-- |
+| Arduino Uno R3 ATmega328PU            | 2   |
+| Arduino prototyping shield            | 2   |
+| Arduino HW-130 motor control shield   | 1   |
+| Arduino SPIO Extension Board with bus | 1   |
+
+## Misc
+
+| Item                                           | Qty |
+| :--------------------------------------------- | :-- |
+| Real time clock w/o battery                    | 1   |
+| Relay HJR-3FF-S-Z                              | 1   |
+| Relay SRD-05VDC-SL-C                           | 1   |
+| Relay bank 8x JQC-3FF-S-Z                      | 1   |
+| Relay bank 8x SRD-12VDC-SL-C                   | 1   |
+| Remote 8-bit I/O expander for I2C bus PCF8574T | 1   |
+| Sound and buzzer module                        | 1   |
diff --git a/docs/electronics/soldering.md b/docs/electronics/soldering.md
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+# Soldering
+
+# Which solder to use?
diff --git a/docs/programming/embedded/_index.md b/docs/programming/embedded/_index.md
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diff --git a/docs/programming/embedded/inventory.md b/docs/programming/embedded/inventory.md
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-# Inventory
-
-| Qty | Item                                           |
-| :-- | :--------------------------------------------- |
-| 2   | Arduino Uno R3 ATmega328PU                     |
-| 2   | Arduinno prototyping shield                    |
-| 1   | Arduino SPIO Extension Board with bus          |
-| ~   | Pushbutton                                     |
-| 1   | Arduino HW-130 motor control shield            |
-| 2   | Ultrasonic sensor HC-SRO4                      |
-| 1   | DC motor driver L298N                          |
-| 1   | 6x AA battery pack                             |
-| 1   | 9V battery pack                                |
-| 1   | Servo motor SG90                               |
-| 1   | LCD display 1602A without pins                 |
-| 1   | LCD display 1602A with pins                    |
-| 1   | Relay bank 8x SRD-12VDC-SL-C                   |
-| 1   | Relay bank 8x JQC-3FF-S-Z                      |
-| 1   | Relay SRD-05VDC-SL-C                           |
-| 1   | Relay HJR-3FF-S-Z                              |
-| 23  | Infrared sensor Flying-Fish                    |
-| 2   | Multimedia remote control                      |
-| 1   | Thumb joystick                                 |
-| 1   | PIR Motion detector XC4444                     |
-| 1   | DC motor                                       |
-| 1   | Stepper motor 28BYJ-48                         |
-| 1   | Remote 8-bit I/O expander for I2C bus PCF8574T |
-| 1   | Sound sensor                                   |
-| 2   | Digital LED display sets                       |
-| 1   | Stepper motor 28BYJ-48                         |
-| 2   | Stepper motor controller X113647               |
-| 1   | Servo motor SG90                               |
-| 1   | Potentiometer, small 10kΩ                      |
-| 2   | Potentiometer, 10kΩ                            |
-| 1   | Potentiometer, 5kΩ                             |
-| 1   | Potentiometer, 1kΩ                             |
-| 1   | Joystick                                       |
-| 1   | Touchpad                                       |
-| 1   | Water sensor                                   |
-| 1   | Light sensor TEMT6000                          |
-| 1   | Triple axis compass                            |
-| 1   | Sound and buzzer module                        |
-| 1   | Real time clock w/o battery                    |
-| 1   | RFID sensor RFID-RC522                         |
-| 1   | RFID card                                      |
-| 1   | RFID fob                                       |
-| 1   | DC motor                                       |
-| 1   | Servo motor, unmarked                          |
-| 2   | Display driver MAX7219CNG                      |