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Practical Low-Cost Methods for Reliable PCB Production This book explains how to carry out reliable SMD assembly using affordable tools and small-scale equipment. It follows the complete workflow step by step, including tool selection, solder paste handling, stencil use, component placement, reflow methods, inspection, and rework. The focus is on bench-level and small-lab production rather than industrial assembly lines. It shows practical methods for building single and double-sided SMD boards with repeatable results. Topics include solder paste and flux, temperature profiles, hot air and hotplate techniques, small reflow ovens, inspection methods, and defect correction. Checklists and example workflows are included to help reduce errors and improve consistency. Key features: Tools and supplies for SMD assembly and rework Solder paste types, storage, and handling Stencils and paste application methods Pick and place workflow and component orientation Temperature profiles and reflow methods Hot air, hotplate, and reflow oven processes Inspection and quality control Common defects such as tombstoning and solder bridges Practical rework and component replacement Bench-level professional workflows and checklists This book is designed as a practical bench reference for anyone who wants to assemble and troubleshoot their own SMD boards with reliable results.

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Practical Low-Cost Methods for Reliable PCB Production This book explains how to carry out reliable SMD assembly using affordable tools and small-scale equipment. It follows the complete workflow step by step, including tool selection, solder paste handling, stencil use, component placement, reflow methods, inspection, and rework. The focus is on bench-level and small-lab production rather than industrial assembly lines. It shows practical methods for building single and double-sided SMD boards with repeatable results. Topics include solder paste and flux, temperature profiles, hot air and hotplate techniques, small reflow ovens, inspection methods, and defect correction. Checklists and example workflows are included to help reduce errors and improve consistency. Key features: Tools and supplies for SMD assembly and rework Solder paste types, storage, and handling Stencils and paste application methods Pick and place workflow and component orientation Temperature profiles and reflow methods Hot air, hotplate, and reflow oven processes Inspection and quality control Common defects such as tombstoning and solder bridges Practical rework and component replacement Bench-level professional workflows and checklists This book is designed as a practical bench reference for anyone who wants to assemble and troubleshoot their own SMD boards with reliable results.

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Designing, Wiring, and Controlling Build Your Own Coffee Roaster is a practical guide to constructing and operating the Cobra Smart Roaster and its companion Open Roaster Controller (ORC). The e-book walks the reader through every stage of the build, from assembling the powerhead and wiring the system to installing and configuring the controller. Along the way, you’ll learn how to use the Raspberry Pi to bring precision and flexibility to your roasting process. Clear, step-by-step chapters cover: Powerhead construction and required components Low- and high-voltage wiring Installing the ORC, network setup, and using the web interface Roasting coffee with the Cobra in different setups, including hand-stir and bread-machine roasting Advanced topics such as manual mode, fixed profiles, Artisan-Scope connections, and ORC system programming A complete parts list, practical guidance throughout, and concise explanations make this e-book a useful reference for anyone interested in building, modifying, or understanding their own coffee-roasting system.

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For Raspberry Pi, ESP32 and nRF52 with Python, Arduino and Zephyr Bluetooth Low Energy (BLE) radio chips are ubiquitous from Raspberry Pi to light bulbs. BLE is an elaborate technology with a comprehensive specification, but the basics are quite accessible. A progressive and systematic approach will lead you far in mastering this wireless communication technique, which is essential for working in low power scenarios. In this book, you’ll learn how to: Discover BLE devices in the neighborhood by listening to their advertisements. Create your own BLE devices advertising data. Connect to BLE devices such as heart rate monitors and proximity reporters. Create secure connections to BLE devices with encryption and authentication. Understand BLE service and profile specifications and implement them. Reverse engineer a BLE device with a proprietary implementation and control it with your own software. Make your BLE devices use as little power as possible. This book shows you the ropes of BLE programming with Python and the Bleak library on a Raspberry Pi or PC, with C++ and NimBLE-Arduino on Espressif’s ESP32 development boards, and with C on one of the development boards supported by the Zephyr real-time operating system, such as Nordic Semiconductor's nRF52 boards. Starting with a very little amount of theory, you’ll develop code right from the beginning. After you’ve completed this book, you’ll know enough to create your own BLE applications.

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For Raspberry Pi, ESP32 and nRF52 with Python, Arduino and Zephyr Bluetooth Low Energy (BLE) radio chips are ubiquitous from Raspberry Pi to light bulbs. BLE is an elaborate technology with a comprehensive specification, but the basics are quite accessible. A progressive and systematic approach will lead you far in mastering this wireless communication technique, which is essential for working in low power scenarios. In this book, you’ll learn how to: Discover BLE devices in the neighborhood by listening to their advertisements. Create your own BLE devices advertising data. Connect to BLE devices such as heart rate monitors and proximity reporters. Create secure connections to BLE devices with encryption and authentication. Understand BLE service and profile specifications and implement them. Reverse engineer a BLE device with a proprietary implementation and control it with your own software. Make your BLE devices use as little power as possible. This book shows you the ropes of BLE programming with Python and the Bleak library on a Raspberry Pi or PC, with C++ and NimBLE-Arduino on Espressif’s ESP32 development boards, and with C on one of the development boards supported by the Zephyr real-time operating system, such as Nordic Semiconductor's nRF52 boards. Starting with a very little amount of theory, you’ll develop code right from the beginning. After you’ve completed this book, you’ll know enough to create your own BLE applications.

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Learn programming for Alexa devices, extend it to smart home devices and control the Raspberry Pi The book is split into two parts: the first part covers creating Alexa skills and the second part, designing Internet of Things and Smart Home devices using a Raspberry Pi. The first chapters describe the process of Alexa communication, opening an Amazon account and creating a skill for free. The operation of an Alexa skill and terminology such as utterances, intents, slots, and conversations are explained. Debugging your code, saving user data between sessions, S3 data storage and Dynamo DB database are discussed. In-skill purchasing, enabling users to buy items for your skill as well as certification and publication is outlined. Creating skills using AWS Lambda and ASK CLI is covered, along with the Visual Studio code editor and local debugging. Also covered is the process of designing skills for visual displays and interactive touch designs using Alexa Presentation Language. The second half of the book starts by creating a Raspberry Pi IoT 'thing' to control a robot from your Alexa device. This covers security issues and methods of sending and receiving MQTT messages between an Alexa device and the Raspberry Pi. Creating a smart home device is described including forming a security profile, linking with Amazon, and writing a Lambda function that gets triggered by an Alexa skill. Device discovery and on/off control is demonstrated. Next, readers discover how to control a smart home Raspberry Pi display from an Alexa skill using Simple Queue Service (SQS) messaging to switch the display on and off or change the color. A node-RED design is discussed from the basic user interface right up to configuring MQTT nodes. MQTT messages sent from a user are displayed on a Raspberry Pi. A chapter discusses sending a proactive notification such as a weather alert from a Raspberry Pi to an Alexa device. The book concludes by explaining how to create Raspberry Pi as a stand-alone Alexa device.

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La ligne de production de prototype SMD Starter I se compose de l'imprimante de pochoir TSD240, du dispositif de placement CMS PlaceMAN et du four de refusion 3LHR10. Imprimante de pochoir SD240 (+ Raclette métallique 155 mm) Dimensions du pochoir : max. 175 x 255 mm Dimensions de la carte de circuit imprimé : max. 180 x 240 mm Dimensions : 410 x 270 x 110 mm Poids : 6,7 kg Comprend une raclette métallique de 155 mm Comprend 8 aimants pour maintenir la carte de circuit imprimé, dont 6 avec vis M3 Dispositif manuel de placement CMS PlaceMAN pour composants standard incl. pompe à vide (sans alimentateurs, caméra, moniteur et distributeur) Équipé d'un bras de placement à mouvement fluide, d'une tête de placement à fonctionnement d'une main, de rotation de l'axe Z et d'une coupure automatique du vide, avec porte-carte de circuit imprimé, unité d'aspiration et 2 aiguilles de placement avec ventouses en caoutchouc. Capacité des alimentateurs (non inclus) 2x cassette d'alimentation pour rouleaux de 10 x 8 mm à gauche 4x cassette d'alimentation pour alimentateurs de tiges pour 5 tiges chacun D'autres systèmes d'alimentation sont possibles dans la zone d'assemblage, par exemple le système enfichable à alimentation par bande Dimensions Unité de base (LxlxH) : 765 x 390 x 210 mm Avec cassette d'alimentation pour rouleaux de 10 x 8 mm (LxlxH) : 765 x 390 x 210 mm Avec cassette d'alimentation pour rouleaux de 10 x 8 mm et cassette d'alimentation pour alimentateur de tiges (LxlxH) : 765 x 430 x 210 mm (la hauteur peut varier en fonction de la longueur des tiges) Avec cassette d'alimentation pour rouleaux de 10 x 8 mm incl. support pour 10 rouleaux et cassette d'alimentation pour alimentateur de tiges (LxlxH) : 765 x 430 x 210 mm (la hauteur peut varier en fonction de la longueur des tiges) Spécifications Poids de l'unité de base : environ 6 kg Déplacement des axes (x, y, z) : 470 x 230 x 15 mm Zone de travail maximale : 380 x 240 mm Dimensions maximales de la carte de circuit imprimé : 230 x 360 mm Alimentation électrique : 230/12 V, 800 mA Alimentation de la pompe à vide : 230 V, 6 W Four de refusion 3LHR10 (programmable pour la soudure sans plomb avec tiroir manuel et contrôle par tablette) Four de refusion avec chauffage IR et convection. La convection à air chaud forcé garantit un profil de température uniforme dans la chambre. Après avoir ouvert manuellement la porte, les ventilateurs s'allument et la carte de circuit imprimé soudée est refroidie rapidement. Four de refusion compact avec porte manuelle Prêt pour l'industrie 4.0, communication Bluetooth + tablette Chauffage IR + convection Application Android pour se connecter à une tablette ou un smartphone 100 programmes utilisateur différents Contenu de la livraison : 3LHR10, tablette avec application, couverture de protection pour la tablette, 4 porte-cartes de circuit imprimé, thermocouple externe, manuel sur la tablette Application Connectez le four à l'alimentation électrique et raccordez le système d'extraction en option (3LFE10S) au conduit d'évacuation d'air. Lors de la première mise en marche, le four recherchera une tablette ou un smartphone. Lorsque les deux sont connectés à l'application Android, choisissez la programmation du four. Ici, la température programmable et le temps de préchauffage, ainsi que la température et d'autres données, doivent être définis. Enregistrez-vous avec la tablette pour utiliser toutes les fonctionnalités du logiciel. Si le four est déjà programmé, l'utilisateur peut contrôler le fonctionnement avec les boutons et l'écran sur le panneau avant. Lorsque le processus de refusion est terminé, un signal sonore retentit. Un signal s'affiche également sur la tablette/smartphone. Le tiroir doit maintenant être ouvert manuellement. L'application Android affiche l'état du processus, le temps et la température, ou d'autres informations. Spécifications Alimentation électrique : 230 V, 50 Hz Puissance maximale : 3100 W Températures : 50-260°C Dimensions : 510 x 370 x 340 mm Poids maximal : 16 kg Dimensions de la grille : 350 x 220 mm Dimensions maximales de la carte de circuit imprimé : 300 x 200 mm Hauteur maximale des composants sur la carte de circuit imprimé : 50 mm en haut, 30 mm en bas Contenu de la livraison Imprimante de pochoir TSD240 Dispositif de placement CMS PlaceMAN Four de refusion 3LHR10

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