Show pageOld revisionsBacklinksBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. <box 300px right | **Project details**> ^ Name: | GECKO3power || ^ Maintainer| [[gecko-addons:gecko3_robot_and_gecko3power:unknown]]|| ^ Revision: | || ^ Development status: | stable || ^ Compatibility: | GECKO3 || </box> ====== GECKO3power ====== This is the electronic module of [[:gecko-platforms:gecko3_robot|gecko3-robot]].\\ It mainly consists of three parts: * Power System to power GECKO3 modules * Sensors * Actuators and power drivers Below you find the description of all sub modules of the board. \\ \\ \\ \\ \\ {{ :gecko-addons:gecko3_robot_and_gecko3power:gecko3powernets.png?500 |}} ===== Schematic and Bill of Material ===== {{ :gecko-addons:gecko3_robot_and_gecko3power:gecko3power_supply.pdf |}}\\ {{:gecko-addons:gecko3_robot_and_gecko3power:gecko3power_supply-bom.pdf|Bill of material}} ===== LEDs ===== * Red: Charging LED, lights during the charging process * Green: Power LED, lights when the system is switched on * Yellow: Battery empty LED, lights when you should recharge the Battery ===== Power Switch ===== Three position switch functions: * off * system on, motors off * system and motors on ===== Motor driver ===== === H-Brige Vishay Si9986 === Full support H-Brige for forward, backward and brake. Datasheet: [[http://www.vishay.com/docs/70007/si9986.pdf|Si9986]]\\ Application Note: [[http://www.vishay.com/docs/70590/70590.pdf|Application Note]] === Controlling the motors === The two motors are controlled by the two signals INA and INB of each motor: ^ Name ^ Description ^ FPGA output ^ | M1_INA | Control signal A for motor 1 | AA21 | | M1_INB | Control signal B for motor 1 | AB24 | | M2_INA | Control signal A for motor 2 | AC26 | | M2_INB | Control signal B for motor 2 | W24 | The motor acts according to the control signal: ^ Signal ^ Brake ^ +Dir ^ -Dir ^ Open ^ | Mx_INA | 0 | 0 | 1 | 1 | | Mx_INB | 0 | 1 | 0 | 1 | === Pinning of the Motor Connector JP1 and JP2 === JP1 and JP2 connect the GECKO3power with the Maxon motors. ^ Pin ^ Name ^ Description ^ | 1 | MA+ | Motor positive output | | 2 | +3V3 | Motor 3.3 V supply (independent from System 3.3 V) | | 3 | Mx_ENA | Encoder output A | | 4 | Mx_ENB | Encoder output B | | 5 | GND | System GND | | 6 | MA- | Motor negative output | ==== Motor and Decoder ==== Are documented under [[gecko3:gecko-platform:gecko3_robot#Motors]]. ===== Sensors ===== ==== Line Sensor ==== {{:gecko-addons:gecko3_robot_and_gecko3power:tcnd5000.png?300|}} With these sensors and the on board circuit to realize a Delta-Sigma ADC (R-C element for integration, D Flip-Flop) you are able to measure the brightness of the floor. So you can build a robot that is following for example a white line on a darker floor. === Reflective Sensor Vishay TCND5000 === * Peak operating range: 2 mm to 25 mm * Daylight blocking filter * High linearity * Emitter wavelength 940 nm Datasheet: [[http://www.vishay.com/docs/83795/tcnd5000.pdf|tcnd5000]] ==== Ultrasonic Distance Sensor ==== {{:gecko-addons:gecko3_robot_and_gecko3power:ultrasonic_sfr10_back.jpg?300|}}{{:gecko-addons:gecko3_robot_and_gecko3power:ultrasonic_sfr10_front.jpg?300|}} === Devantech SRF10 === * Frequency 40KHz * Max. Analogue Gain Variable 40 to 700 in 16 steps * Units Range reported in uS, mm or inches * Range from 30 to 6000 mm * Connected to I<sup>2</sup>C Bus * Size of only 32 x 15 x 10 mm * [[http://www.robot-electronics.co.uk/acatalog/Ultrasonic_Rangers.html|Devantech US Rangers]] Datasheet with description of the I<sup>2</sup>C commands: {{http://www.robot-electronics.co.uk/htm/srf10tech.htm}} ===== Battery ===== {{ :gecko-addons:gecko3_robot_and_gecko3power:gecko3power_battery.jpg?300|}} The battery is a common lithium-ion type rechargeable type. === Contrell PA-LP987 === * Cell Type Panasonic CGA103450 * Voltage 3.6 – 4.2 V * Capacity 3900 mAh * 1s2p type: 2 cells in parallel ==== Battery Charger LTC4075EDD ==== Charge through USB or with wall adapter.\\ To charge it using a USB cable you can use any USB connector on any other board connected to the system bus! ===== Wall adapter Input ===== The wall adapter input is a common barrel connector. === Connector === * Outer diameter 3.5 mm * Hole diameter 1.35 mm * Input current up to 4 A * Input voltage 4.5 – 5.5 V If you need a connector to plug into the robot you can use the one with order number [[https://www.distrelec.ch/ishopWebFront/catalog/product.do/para/node/is/acakabaaacab/and/highlightNode/is/151300/and/id/is/01/and/series/is/1.html|151300 at Distrelec]] ===== DC/DC Converter ===== The system voltage of GECKO3 modules is 3.3 V. The DC/DC Converter is the primary power supply for any 3.3 V component on other modules. === Supply === * Voltage: 3.3 V * Available current: up to 3 A ===== 60 to 120 pin adapter ===== This adapter connects the power module to the system bus electrically and matches the height and position of the system bus connector for the [[:gecko-platforms:gecko3_robot|gecko3 robot]]. {{ :gecko-addons:gecko3_robot_and_gecko3power:gecko3robot_adapter.jpg?300|}} Schematic and bill of material:\\ {{:gecko-addons:gecko3_robot_and_gecko3power:pcb_60pin_120pin.pdf|}}\\ {{:gecko-addons:gecko3_robot_and_gecko3power:pcb_60pin_120pin_bom.pdf|}} Pinning of the [[:gecko3:system_bus:start|120 pin GECKO3 system bus]]. gecko-addons/gecko3-power.txt Last modified: 2021/12/20 10:49by 127.0.0.1