SimpleThermometer
This circuit is a simple dual simplex to half-duplex driver for 1-wire devices. However, it does not function with all devices, as some may draw excessive current. It was specifically designed and tested for the DS18B20+ 1-wire digital thermometer. The parasite power-only version, DS18B20P, is not supported. The circuit consists of four components, including the thermometer, three 0805 SMD resistors, and a general-purpose PNP transistor. These components are widely available, and kits may sometimes be found within the wlan-si network. The circuit board layout is identical to the previous version, with the positioning of the components adapted to the TP-LINK serial port pinout for easier integration. This documentation serves as a step-by-step guide. Position the circuit board in front of you for proper reading of the markings. Solder two 4.7kΩ resistors into the vertical positions on the left side of the board, labeled R1 and R2. Place the transistor T1 onto the board with its body facing the opposite side (where there are no copper traces), and solder it in place. The rounded part of the transistor body should point towards wlan-si.net. Finally, solder the thermometer into the slot marked IC1, ensuring that the rounded part of the thermometer body also points towards wlan-si.net.
This circuit serves as a dual simplex to half-duplex driver tailored for 1-wire devices, specifically optimized for the DS18B20+ digital thermometer, which is a widely used temperature sensor in various applications. The circuit's design accommodates the operational characteristics of the DS18B20+, ensuring reliable performance while acknowledging limitations with other 1-wire devices that may require higher current than the circuit can provide.
The core components include three 0805 surface mount resistors, which are typically chosen for their small footprint and ease of integration into compact designs. The use of a general-purpose PNP transistor allows for efficient switching and signal modulation necessary for the half-duplex communication protocol utilized by the DS18B20+.
The circuit board layout has been specifically designed to match the TP-LINK serial port pinout, facilitating straightforward connections to existing systems without the need for extensive modifications. This thoughtful design consideration minimizes potential integration challenges, making it accessible for users who may not have advanced electronics skills.
The assembly instructions are clear and methodical, guiding users through the soldering process of the resistors and the transistor. Careful attention is required to ensure that the components are oriented correctly, particularly the rounded ends of the transistor and thermometer, which are critical for proper functionality.
Overall, this circuit provides a practical solution for interfacing with 1-wire devices, particularly in applications where space and integration ease are paramount. The detailed assembly instructions contribute to a user-friendly experience, promoting successful implementation in various electronic projects.This circuit is a simple dual simplex to half-duplex driver for 1-wire devices, although it does not work with all of them, because some draw too much current. It was designed and tested for DS18B20+ 1-wire digital thermometer. The parasite power only version - DS18B20P is not supported. There are four elements plus a thermometer, three 0805 SMD r esistors and a general purpose PNP transistor. These elements are generally available everywhere, there are kits sometimes available within wlan-si network. This circuit board is identical to the previous one, placement of the elements is adapted to the TP-LINK serial port pinout, to enable as painless integration as possible.
This documentation is written as a step by step guide. Place the circuit board in front of you, so you can read the markings normally. Solder 4. 7kOhm resistors on two vertical places on the left side of the board, marked R1 and R2. Place the transistor T1 on the board, so that its body is on opposite side of the board(where are no copper traces) and solder it into place. The rounded part of transistor body has to point in the direction of wlan-si. net. Solder the thermometer on the buard just as you did the transistor into slot marked IC1. The rounded part of thermometer body has to point in the direction of wlan-si. net. 🔗 External reference
This circuit serves as a dual simplex to half-duplex driver tailored for 1-wire devices, specifically optimized for the DS18B20+ digital thermometer, which is a widely used temperature sensor in various applications. The circuit's design accommodates the operational characteristics of the DS18B20+, ensuring reliable performance while acknowledging limitations with other 1-wire devices that may require higher current than the circuit can provide.
The core components include three 0805 surface mount resistors, which are typically chosen for their small footprint and ease of integration into compact designs. The use of a general-purpose PNP transistor allows for efficient switching and signal modulation necessary for the half-duplex communication protocol utilized by the DS18B20+.
The circuit board layout has been specifically designed to match the TP-LINK serial port pinout, facilitating straightforward connections to existing systems without the need for extensive modifications. This thoughtful design consideration minimizes potential integration challenges, making it accessible for users who may not have advanced electronics skills.
The assembly instructions are clear and methodical, guiding users through the soldering process of the resistors and the transistor. Careful attention is required to ensure that the components are oriented correctly, particularly the rounded ends of the transistor and thermometer, which are critical for proper functionality.
Overall, this circuit provides a practical solution for interfacing with 1-wire devices, particularly in applications where space and integration ease are paramount. The detailed assembly instructions contribute to a user-friendly experience, promoting successful implementation in various electronic projects.This circuit is a simple dual simplex to half-duplex driver for 1-wire devices, although it does not work with all of them, because some draw too much current. It was designed and tested for DS18B20+ 1-wire digital thermometer. The parasite power only version - DS18B20P is not supported. There are four elements plus a thermometer, three 0805 SMD r esistors and a general purpose PNP transistor. These elements are generally available everywhere, there are kits sometimes available within wlan-si network. This circuit board is identical to the previous one, placement of the elements is adapted to the TP-LINK serial port pinout, to enable as painless integration as possible.
This documentation is written as a step by step guide. Place the circuit board in front of you, so you can read the markings normally. Solder 4. 7kOhm resistors on two vertical places on the left side of the board, marked R1 and R2. Place the transistor T1 on the board, so that its body is on opposite side of the board(where are no copper traces) and solder it into place. The rounded part of transistor body has to point in the direction of wlan-si. net. Solder the thermometer on the buard just as you did the transistor into slot marked IC1. The rounded part of thermometer body has to point in the direction of wlan-si. net. 🔗 External reference
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