added rovi subpages

- control board
- pwoer manager

Author: wassfila

content/robotics/USB-Power.png content/robotics/rovi/USB-Power.pngcontent/robotics/USB-Power.png renamed to content/robotics/rovi/USB-Power.png

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+# Product
+
+* Product page : https://category.yahboom.net/products/ros-driver-board
+
+![board](./ROS_Expansion_Board_Yahboom_06_700x.webp)
+
+* wiki page : https://www.yahboom.net/study/ROS-Driver-Board
+
+# Schematics
+
+![schematics](ROS-ExpansionboardV3.0-en-new-20250509.svg)
+
+## Components
+
+* AM2857 One Channel H-Bridhe Power Driver 4.0 A Continuous / 6.5 A Peak
+
+* MP2225 5 A continuous. High-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs.
+

content/robotics/rovi/motors-control-board/ROS-ExpansionboardV3.0-en-new-20250509.svg

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+# Overview
+
+![power](power.drawio.svg)
+
+![block-diagram](./Block-diagram.png)
+
+# Components
+
+## Power monitor
+* INA226 I2C output current/voltage/power monitor.
+* R 2 mOhm for 20 A
+
+![power monitor](./ina226_module-front-back.png)
+
+## Push button
+
+![pushbutton](./Big-pushbutton-HP.png)
+
+* Big Pushbutton HP : continuous 16 A https://www.pololu.com/product/2813
+
+* Big Pushbutton MP : continuous 8 A https://www.pololu.com/product/2812
+
+## DC-DC Voltage Converters
+
+* 5V USB-C 3A. Input 8-32 V
+
+DC-DC 8V-32V to 5V Voltage Converter USB-C 3A 15W USB Socket 12-V 5V Power Adapter USB Power Supply 24V USB Voltage Converter Buck Converter Step-Down Charger Volt Charging Regulator
+
+* 5V 5A. Input 8-40V
+
+Greluma 1 x DC 12 V 24 V to 5 V Step-Down Converter Regulator 5 A 25 W Power Supply Reducer for Car Electronics Truck Vehicle Boat Solar System (DC 8-40 V Inputs)
+