Jetson nano dc motor control - Connect MB_EN together with a jumper, as we are not going use external power.

 
The schematic is shown here. . Jetson nano dc motor control

According to Nvidia’s official instruction, Pin 33 is specified as PWM output. The NVIDIA Jetson Nano is a pretty cool board that brings the power of GPU computing to the edge. Arduino Mega + Ramps for motor control. ROS robot operating system and Python programming are adopted. BLDC Motor Speed Control By Employing BOOST Converter. Brutto Toggle Netto anzeigen. 5~15 V) and VCC (2. Step 1. In-Store Purchase and. The processor is an Nvidia Jetson Nano, and it works best between 10 °C and 25 °C. On its own, the JetBot is a nice development platform to have. Connect your other computer to the developer kit’s Micro-USB port. This tutorial here shows you how to set up the motors. ROS Melodic and OpenCV lecture with 4DC motors but without steering motor. # for 1st Motor on ENA. 99 $24. The clock frequency on a Jetson Nano is very dynamic. If you choose to use a 5V DC barrel jack adapter, make sure it outputs at least 4 Amps. Support cross-platform interconnection control. A HIGH signal will light up the LED and a LOW signal will turn off the LED. GPIO as GPIO FORWARD=1 BACKWARD=2 MIN_SPEED=0 MAX_SPEED=100 class Motor ():. If you choose to use a 5V DC barrel jack adapter, make sure it outputs at least 4 Amps. IMX219-120 Camera, Applicable For Jetson Nano, 8 Megapixels, 120° FOV. jetson nano dc motor control 1. It is primarily targeted for creating embedded systems that require high processing power for machine learning, machine vision and video processing applications. JBC NA-SA Ablageständer, NA-SA, für Nano-Heißluftkolben NH in Stands, Soldering Equipment, Lab Equipment. Package: DIP8. There are a lot of details on the Aetina AIE-KO21, AIE-KO31, AIE-KN31, and AIE-KN41. You could for example initiate the PWM-signal to 100Hz like this: p = GPIO. Let’s make it clear: if you want to power your Nano along with the necessary peripherals through the Micro USB or USB C port, use a 5V adapter that can output 2. Jetson Nano 40-pin pinout According to Nvidia's official instruction, Pin 33 is specified as PWM output. JetPack includes: Desktop Linux with NVIDIA drivers. It indicates, "Click to perform a search". NVIDIA Jetson Nano Official Q & A; Jetson Nano kernel build tutorial; Now let’s start to make your Jetson Nano output PWM. If your robot uses DC motors and a motor driver(for example L298P-based) it is possible to directly interface motor driver with Jetson Nano GPIO. Built Robotic Actuators for Open-Source Robotic Arms. What is a search engine and how browser can work. Seeed Studio’s reComputer J4012 was the first NVIDIA Jetson Orin NX edge AI computer, but it turns out that Aetina also launched Jetson Orin NX/Orin Nano industrial embedded computers around the same time. It lets users control two motors via I2C and a . cd ~/catkin_ws roscore Open a new terminal window, and launch the ROS serial server. A magnifying glass. Jetson Nano Developer Kit DA. Autonomous Machines Jetson & Embedded Systems Jetson Nano. DC - DC Converters. Gain Range: 0dB to - 83dB (1dB/step) Low noise and low distortion. PWM (output_pin, 100) And adjust the PWM duty cycle between 0. 18650 x2 Batteries + Holder. I also did not find how to make a simple code to control my motor. PWM (output_pin, 100) And adjust the PWM duty cycle between 0. The data is transferred using DC, POE, and USB 3. There are a lot of details on the Aetina AIE-KO21, AIE-KO31, AIE-KN31, and AIE-KN41. Step 3. Motor Protection. HARDWARE & Where to BUYJetson Nano :: http://bit. Add to Wishlist. With the appropriate code, this chip allows you to control the speed and direction of two independent DC motors. tf ow Jetson nano dc motor control By ss kr ca fy vm. Motor Driver L293D. Quick Overview : → AC Input - 100-240V AC 0. If your robot uses DC motors and a motor driver(for example L298P-based) it is possible to directly interface motor driver with Jetson Nano GPIO. While talking about Jetson Nano, Quad Core ARM Cortex-A57 which is 1. A magnifying glass. tf ow Jetson nano dc motor control By ss kr ca fy vm. TATTU 5pcs 3. When I use the pca9685 the libraries require me to use digitalio to use the pins for the GPIO pins. It lets users control two motors via I2C and a PCA9685, along with viewing output on an OLED or via the web, and finally, it has support for a camera in order to perform computer vision tasks. 18650 x2 Batteries + Holder. 5A Power Enhanced motor drive module with high version (including silicone wire, pin, terminal), and choose a standard version, the supply voltage 2V ~ 10V , the DC motor can drive two or. 43 Ghz powerful 64 bit quad core processor Jetson Nano is a small, powerful computer for embedded applications and AI IoT that delivers the power of modern AI in a (1KU+) module. We launch this 5V 4A DC power adapter, which can provide more current and more stable voltage for the Jetson Nano. 64GB UHS-I microSD Card Preinstalled with Jetson Nano OS FREE Local Delivery (non-restricted areas) with min. It is primarily targeted for creating embedded systems that require high processing power for machine learning, machine vision and video processing applications. Thanks in advance. This is a 5V DC cooling fan with a 2-wire connector for Jetson Nano B01 and Jetson Nano 2GB. 0 Type-C cables. AI and Computer Vision libraries and APIs. Provide 110 teachi. It lets users control two motors via I2C and a . Jetson Nano Boards Latte Panda X86 - Win10 Ready. 01 Feb 2023. GETTING STARTED WITH MAKER NANO RP2040 AND ARDUINO IDE; Lesson 1 : LED Blink; Lesson 2 : Siren; Lesson 3 : Digital Input. Brushless DC Motor (Ref: ISL Products) Brushless DC motors are mechanically simpler than brushed ones. Powering Arduino and Motor driver. Here’s an explanation of DC and ho. Windows and Linux are the operating systems, and it has a 6DoF IMU. Developers, learners, and makers can run AI frameworks and models for applications like image classification, object detection, segmentation, and speech processing. A magnifying glass. 1 Answer. using L298N pwm motor controller. In this blog, we are going to explain how to control Delta ASDA-A2 Servo Motor with NVIDIA Jetson Nano/Xavier NX using QT5. Set SEN_A and SEN_B and connect the left 2 pins together with a jumper. 5 Amps or higher. Common actuators are DC motors, Servo motors, continuous servo motors and. ob; hj. It is primarily targeted for creating embedded systems that require high processing power for machine learning, machine vision and video processing applications. In-Store Purchase and Pick-up Option no longer available. Adafruit 16-Channel 12-bit PWM/Servo Shield - I2C interfacex1. The the motor driver can with replaced with. DC - DC Converters. 5V PWM Cooling Fan for Jetson Nano FREE Local Delivery (non-restricted areas) with min. You have already set up your NVIDIA Jetson Nano (4GB, B01) with ROS. HRB8825 Stepper Motor HAT For Raspberry Pi, Drives Two Stepper Motors, Up To 1/32 Microstepping Add to Cart Add to Compare $28. See more ideas about nvidia, deep learning, ai robot. Raspberry pi. Version: Balance. 5V-27V 7A PWM Motor Regulator Board 12V 24V Electric Motor Control Module Industrial. Aug 12, 2022 · Omron's G8PM DC Automotive PCB Relay is a high load automotive relay for motor/resistive control. If your robot uses DC motors and a motor driver(for example L298P-based) it is possible to directly interface motor driver with Jetson Nano GPIO. PWM control on L298N with Jetson nano. Jetson nano dc motor control Kendryte’s Popular K210 Risc-v Soc With NeuralProcessing Unit Finds a New Home in Sipeed Maix NanoM1n; Designcore Carrier Board for Nvidia JetsonXavier Nx Module Provides 12 Camera/sensor Inputs to Enable Complex Edge Ai Systems; Connect Tech Announces Carrier Board and System Level Support for Nvidia JetsonXavier Nx. Support cross-platform interconnection control. Our solution is to use the mentioned servo driver which provides up to 16 PWM channels and a pretty easy python module to adjust the servo position. Storage Temperature: -55 ~ +125℃. Stand Offs (box) Raspberry Pi v2 Camera. If a simple control scheme and low cost is your primary concern, consider the use of a brushed DC motor. The L293D H-bridge motor controller is used with a DC motor to control the motor in either direction. using jetson nano to control 4 stepper motors for a robot car. Then connect the Jetson Nano to the Arduino board using a USB cable, so that the Jetson is able to communicate with the Arduino using it's Serial port at `/dev/ttyUSB0`. PZEM-0xx power monitor. NVIDIA's Jetson Nano has excellent GPU capabilities, making it a popular choice for Machine Learning (ML) and often used for gaming and CUDA-based computations. . It is labeled on the board itself but this is easier I think. If your robot uses DC motors and a motor driver(for example L298P-based) it is possible to directly interface motor driver with Jetson Nano GPIO. the DC Motor + Stepper FeatherWing which will let you use 2 x bi-polar stepper. Oct 09, 2019 · The Grove-Rotary Angle Sensor (P) is capable of producing analog output between 0 and Vcc (5V DC with Seeeduino) on its D1 connector. Log In My Account iu. Note: The holes on the heatsink of the Jetson Nano Dev Kit do not have threads for screws. In the first lesson, we would like to see how to control the onboard LED. Kendryte’s Popular K210 Risc-v Soc With Neural Processing Unit Finds a New Home in Sipeed Maix Nano M1n; Designcore Carrier Board for Nvidia Jetson Xavier Nx Module Provides 12 Camera/sensor Inputs to Enable Complex Edge Ai Systems; Connect Tech Announces Carrier Board and System Level Support for Nvidia Jetson Xavier Nx. carlos144 October 2, 2021, 10:12pm #1. •A two-wheel drive was designed using Arduino Uno R3 and an Adafruit Motor Driver. PZEM-0xx power monitor. I2C controlled, using only 2 pins. Continuous Discharge current: maximum 20A (in an environment that allows for good heat dissipation) Continuous Charging Current: maximum 10A. Hussien Jawhar Sathik. Nov 15, 2019 · The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3. Use the editor you prefer ( nano, vi , gedit ,. Arduino Mega + Ramps for motor control. ROS robot operating system and Python programming are adopted. Electrical Vehicles. Controlled with 2-wire serial data. I am trying to run servo motors and a dc motor at the same time. 01 Feb 2023. Storage Temperature: -55 ~ +125℃. The Developer kit has a CUDA compatible GPU that lets it run Deep Learning applications on the Edge. Discover the power of AI and robotics with NVIDIA Jetson Nano 2GB Developer Kit. It lets users control two motors via I2C and a . PCA9685 12-bit PWM controller. Cheap DC Motor x2. Supports Jetson NANO/TX2 NX and Raspberry Pi 4B development boards. HARDWARE & Where to BUYJetson Nano :: http://bit. Export the DT file. ob; hj. je xo. Buy the best and latest tv channel board on banggood. Jetson Nano Module > 128-Core NVIDIA Maxwell™ GPU > ®Quad-Core ARM A57 CPU > 4 GB 64-Bit LPDDR4 > 10/100/1000BASE-T Ethernet Power Options > Micro-USB 5V 2A > DC Power Adapter 5V 4A I/O > USB 3. Log In My Account iu. Charging Voltage: DC 8. 5 Amps or higher. ob; hj. Jetson Nano 2GB/4GB Power Supply Requirements. Jetson Nano/NX; Mac Mini; Intel NUC; Camera Modules. Works with both 4GB and 2GB jetson nao variants. Embedded with Matlab. $65 order (before GST). Powering Arduino and Motor driver. The schematic is shown here. Mobile: +91 87880 85416 / +91 83296 49598. Since the micro USB interface of Jeston Nano only supports 2A current, when we use other devices with the Jeston Nano, such as fan, 7-inch display, camera and so on. . DC-motor control using Nvidia Jetson Nano 2GB & Arduino - YouTube Using 4 TT dc-motors we can control the speed as well as the direction of the motors by using Nvidia Jetson Nano. the steering servo and the DC motors used for the drive, is the NVIDIA Jetson Nano . The processor is an Nvidia Jetson Nano, and it works best between 10 °C and 25 °C. Dimensions: 45 x 70mm. Connect MB_EN together with a jumper, as we are not going use external power. DC Motor, 12 Vx4. NVIDIA Jetson Nano Official Q & A; Jetson Nano kernel build tutorial; Now let’s start to make your Jetson Nano output PWM. Connect the red wire from the second motor ( M2) to OUT4. Flat Metal Strips. We can use this output to power our control circuit (Arduino Nano). Oct 09, 2019 · The Grove-Rotary Angle Sensor (P) is capable of producing analog output between 0 and Vcc (5V DC with Seeeduino) on its D1 connector. It includes pendulous suspension chassis, high-power motor and high-friction tire, which can be applied to complex ground. The data is transferred using DC, POE, and USB 3. The processor is an Nvidia Jetson Nano, and it works best between 10 °C and 25 °C. The sample code used above is modified and two GPIO pins on the expansion header are connected to the control pins of the H bridge on the L293D motor driver. ob; hj. It can control the backlight to connect the transistor to a digital pin 480×320 Pixels, with colorful and 18-bit, 262,000 different kinds of shade 4-wire resistive touchscreen. Archer T2U Nano | AC600 Nano Wireless USB Adapter | TP-Link. JBC NA-SA Ablageständer, NA-SA, für Nano-Heißluftkolben NH in Stands, Soldering Equipment, Lab Equipment. Step 1. Log In My Account iu. Work through the Prepare for Setup, Writing Image to the microSD Card, and Setup and First Boot instructions, then return here. Provide 110 teachi. 97 - $29. New Products;. Windows and Linux are the operating systems, and it has a 6DoF IMU. A HIGH signal will light up the LED and a LOW signal will turn off the LED. In the first lesson, we would like to see how to control the onboard LED. 2 Key E. First, let’s get the power out of the way. The Nvidia Jetson Nano Developers Kit clocks in at $99 USD, available right now, while the production ready module will be available in June for $129. which are already used for speed control of DC motors. It’s the size of a stick of laptop RAM,. Jetson Nano; SPI interface, for connecting with controller boards like Raspberry Pi/Jetson Nano/Arduino/STM32, etc. Which one used depends on the task on hand and will be set by the so-called governer, all to keep power consumption as low as possible. SG90 Micro-servo motorx1. Jetson Nano를 얹어서 완성된 자동차. ob; hj. The most popular is the automotive industry’s use of them in power windows and seats. On average, DC uses 11 W of power, and POE uses 13 W of power. The Servo has three wires: power, ground, and signal. L298- HBridge. 64GB UHS-I microSD Card Preinstalled with Jetson Nano OS FREE Local Delivery (non-restricted areas) with min. Charging Voltage: DC 8. 5A Power Enhanced motor drive module with high version (including silicone wire, pin, terminal), and choose a standard version, the supply voltage 2V ~ 10V , the DC motor can drive two or. I am trying to run servo motors and a dc motor at the same time. SKU: 1249213. Step 1: Connect Servo to the Seeeduino. Connect Arduino to PC via a USB cable. You can control 2 Steppers, or 1 Stepper + up to 2 DC motors or up to 4 DC motors by mixing and matching what is connected to each port. 0 Type A > USB 2. Jetson Nano Boards Latte Panda X86 - Win10 Ready. Provide 110 teachi. . FORWARD=1 BACKWARD=2 MIN_SPEED=0 MAX_SPEED=100. 5V-27V 7A PWM Motor Regulator Board 12V 24V Electric Motor Control Module Industrial. Package: DIP8. The clock frequency on a Jetson Nano is very dynamic. reComputer J1020 with Jetson Nano Module Offers a hand-size edge AI box Built with Jetson Nano module, rich set of IOs, aluminum case, and more Comes with a . using L298N pwm motor controller. Motor Driver L293D. In the first lesson, we would like to see how to control the onboard LED. This kit also comes with 64GB, Class 10, U1, A1 grade MakerDisk microSD card, preloaded JetPack , ready to boot up on the Jetson Nano B01 board. The processor is an Nvidia Jetson Nano, and it works best between 10 °C and 25 °C. The Nvidia Jetson Nano Developers Kit clocks in at $99 USD, available right now, while the production ready module will be available in June for $129. Support cross-platform interconnection control. First, let’s get the power out of the way. ly/2YMfOdQ12V Low no. What I am was wondering is if I can connect the esc to the controller you suggested to also control the brushless motors. Hussien Jawhar Sathik. GETTING STARTED WITH MAKER NANO RP2040 AND ARDUINO IDE; Lesson 1 : LED Blink; Lesson 2 : Siren; Lesson 3 : Digital Input. oiled overload

In-Store Purchase and Pick-up Option no longer available. . Jetson nano dc motor control

Add in a few screws, and you have a functioning. . Jetson nano dc motor control

It’s the size of a stick of laptop RAM,. What is a search engine and how browser can work. using L298N pwm motor controller. AC Drives. But, our car is powered by a Jetson Nano board (so it is the brain that controls all things) and it supports only two PWM channels, which are already used for speed control of DC motors. The data is transferred using DC, POE, and USB 3. AC motors are powered by an alternating current while DC motors use a direct current as a power source. Webcam (c270 recommended). // put your setup code here, to run once: pinMode (D2, OUTPUT);. 1 Reply Share Report Save Follow. The data is transferred using DC, POE, and USB 3. | Shopping Malaysia. ob; hj. It is labeled on the board itself but this is easier I think. It seems pwm signal is not reaching pin 33. L298- HBridge. You could for example initiate the PWM-signal to 100Hz like this: p = GPIO. We carry a variety of motor controllers from various . Provide 110 teachi. The following command will run the Jetson code to control the bot and make it. Running two simple DC motors (5 Amp) Forward and Backward in Jetson Nano Real Time Dangerous Object Detection and Alarm with NVIDIA Jetson JerryChang November 13, 2019, 3:33am #8 I am able to use the pin 33 as pwm but cant do same for pin 32,getting the following error: Traceback (most recent call last): File “ras. Up to 16-Channel servo/PWM outputs, 12-bit resolution for each channel (4096 scales). The motor is 12v (good choice for a 3-cell, 11. Let’s make it clear: if you want to power your Nano along with the necessary peripherals through the Micro USB or USB C port, use a 5V adapter that can output 2. High-Speed Dual Band Adapter for Better Connections. ROS robot operating system and Python programming are adopted. Thanks in advance. 64GB UHS-I microSD Card Preinstalled with Jetson Nano OS FREE Local Delivery (non-restricted areas) with min. Then connect the Jetson Nano to the Arduino board using a USB cable, so that the Jetson is able to communicate with the Arduino using it's Serial port at `/dev/ttyUSB0`. AO1/A02, B01/B02 are 2 motor control output terminals, that is, output signals to control the motor. They will not work properly due to the insufficient power supply. It includes pendulous suspension chassis, high-power motor and high-friction tire, which can be applied to complex ground. EN DE EN Compare items My projects Create project School Discount Order&Quotation Blog-EN Contact RMA. Autonomous Machines Jetson & Embedded Systems Jetson Nano. Charging Voltage: DC 8. Support cross-platform interconnection control. Hussien Jawhar Sathik. On/Off Switch. A HIGH signal will light up the LED and a LOW signal will turn off the LED. Supports Jetson NANO/TX2 NX and Raspberry Pi 4B development boards. 0 Type-C cables. thanks nadeemm closed October 15, 2021, 2:59am #5. CPU: Quad-core ARM Cortex-A57 MP Core processor. 50 STEPPERONLINE Nema 17 Stepper Motor Bipolar 2A 59Ncm (84oz. Start prototyping using the Jetson Nano Developer Kit and take. Support cross-platform interconnection control. jetson nano and SSD(single shot detector)based object detection and following diff-drive bot. The sample code used above is modified and two GPIO pins on the expansion header are connected to the control pins of the H bridge on the L293D motor driver. It's straightforward to set up and . 12 oz) Motor Type: DC Motor Gear Type: Copper & Aluminum Working frequence: 1520μs / 333hz Size: 40 x 20 x 40. Export the DT file. 0 Type-C cables. We can use this output to power our control circuit (Arduino Nano). Inverse Kinematics is used to determine end-effector position and used Tools like Gazebo & ROS Move-it for Path Planning. SmartDriveDuo-30 is one of the latest smart series motor drivers designed to drive medium power brushed DC motors, each channel capable of 80A peak (few seconds) or 30A continuously. 1 Check out the Nvidia Jetson GPIO repository, and the PWM sample. 0 Type-C cables. when using adjustable motor power supply : drives two 1. 12 oz) Motor Type: DC Motor Gear Type: Copper & Aluminum Working frequence: 1520μs / 333hz Size: 40 x 20 x 40. Nvidia has developed a robotics platform that utilizes the Jetson Nano called the JetBot. Surge Protection Devices. Supports Jetson NANO/TX2 NX and Raspberry Pi 4B development boards. Brushless DC Motors. Connect the red wire from the first motor ( M1) to OUT1 on the L298N board. IMX219-120 Camera, Applicable For Jetson Nano, 8 Megapixels, 120° FOV. The case is sturdy and covered with the protection film to protect from any scratches till the time it reaches you. Assemble the cooling fan. 12 oz) Motor Type: DC Motor Gear Type: Copper & Aluminum Working frequence: 1520μs / 333hz Size: 40 x 20 x 40. You might need to apply extra force to screw the fan on. It’s smaller than the usual robot motors, but has enough power for a small rover. 97 - $29. 2% in order to generate the necessary 1-2ms high pulse PPM signal to set, like this:. py”, line 44, in main (). It’s smaller than the usual robot motors, but has enough power for a small rover. 0 Type-C cables. Jetson Nano Module > 128-Core NVIDIA Maxwell™ GPU > ®Quad-Core ARM A57 CPU > 4 GB 64-Bit LPDDR4 > 10/100/1000BASE-T Ethernet Power Options > Micro-USB 5V 2A > DC Power Adapter 5V 4A I/O > USB 3. je xo. Hi, I am trying to use my Nano to control some DC motors (at least 2, 4 ideally), several servo motors, two cameras, and a rangefinder. 1v lipo battery), geared to max 159 rpm. using L298N pwm motor controller. The python will send a string like this 52a34b67c? where 52 is the number of. Ball Caster Wheel. Since the micro USB interface of Jeston Nano only supports 2A current, when we use other devices, such as fan, 7-inch display, camera and so on. 3V/5V MCUs. Support cross-platform interconnection control. ob; hj. Visit the official Nvidia Jetson Nano Getting Started Guide or Nvidia Xavier NX Getting Started Guide. Connect Arduino to PC via a USB cable. The data is transferred using DC, POE, and USB 3. Connecting a DC motor to a Jetson nano Expansion Header. Visit the official Nvidia Jetson Nano Getting Started Guide or Nvidia Xavier NX Getting Started Guide. NVIDIA Jetson Nano Development Kit Development Kit. That’s pretty cool and leads the way to very simple rover setups. It indicates, "Click to perform a search". HARDWARE & Where to BUYJetson Nano :: http://bit. Arducam IMX219 Low Distortion IR Sensitive (NoIR) Camera Module, drop-in replacement for Raspberry Pi V2 Camera and Jetson Nano Camera. Log In My Account qp. 0 Type-C cables. 64GB UHS-I microSD Card Preinstalled with Jetson Nano OS FREE Local Delivery (non-restricted areas) with min. import Jetson. you may also refer to Running two simple DC motors (5 Amp) Forward and Backward in Jetson Nano for using Nano's PWM. 1 × L298 bridge IC; 1 × DC motor; 1 × Arduino UNO; 1 ×. ob; hj. Power Consumptions: 5-10W. It includes pendulous suspension chassis, high-power motor and high-friction tire, which can be applied to complex ground. Using 4 TT dc-motors we can control the speed as well as the direction of the motors by using Nvidia Jetson Nano 2gb developer. 01 Feb 2023. Connect DC motor to Chanel 0 (OUT1 and OUT2) and plug Motor Shield into Arduino. DC Geared Motor. DC Motor Controllers; LCDs & OLEDs. 64MP Autofocus Camera for Raspberry Pi; Raspberry Pi Cameras; Pivariety Cameras; Jetson Nano Cameras; DepthAI OAK Camera Module; Arduino SPI Cameras; Camera Accessories;. Windows and Linux are the operating systems, and it has a 6DoF IMU and an 8-pin connector. We have stocked Pololu products since 2014 and are huge fans of their DC/DC regulators! Pololu products in our shop:. ,LTD from China. Hussien Jawhar Sathik. . meg turney nudes, california state employee salaries, black stockings porn, nude female celebreties, brazzers nurse, mega casino no deposit bonus codes 2023, porn socks, videos pornos de negras, google snake mod menu from github, fbneo romset is unknown retropie, battery operated anniversary clock parts, module 00104 exam answers co8rr