Precise Temperature Monitoring with the DS18B20 Sensor
The tinycontrol DS18B20 is more than just a simple temperature sensor – it is your reliable partner for precise measurements in any scenario. Whether you want to monitor the flow temperature of your heating system, the water temperature in an aquarium, or the ambient temperature in a server-rack Network, this sensor delivers exact digital values. The stainless steel probe ensures a fast thermal reaction and reliably protects the sensitive DS18B20 chip inside from external influences.
The 1-Wire Protocol: Ingeniously Simple, Maximally Scalable
Forget complex cable clutter. The biggest advantage of this sensor lies in the 1-Wire protocol. You only need a single data line (plus power and ground) to connect a variety of sensors. Each waterproof DS18B20 sensor with stainless steel sleeve is uniquely recognized in the system via its unique 64-bit address. This makes it the perfect choice for complex measurement tasks where you want to operate multiple DS18B20 sensors on a single bus, for example, when monitoring a complete heating control system within your Network.
Robust and Flexible for Your Projects
This sensor is designed for use in demanding environments. The waterproof encapsulation of the sensor head allows measurements in liquids (no saltwater!) or outdoors. The 90 cm long connection cable offers you flexibility during installation. Thanks to digital signal transmission, you can easily extend the Cabling by several tens of meters if required, without having to fear a loss of signal quality. Ideal for comprehensive building or facility monitoring.
Strengths & Notes at a Glance
- Pro: Extremely simple integration thanks to standardized 1-Wire protocol.
- Pro: Loss-free, digital signal transmission even over long cable runs.
- Pro: 'Multidrop' capability allows connecting many sensors to a single bus within your Network.
- Pro: Robust, waterproof stainless steel encapsulation for use in harsh environments.
- Note: No official IP certification – use under high pressure or permanent submersion at your own risk.
- Note: Open cable ends require basic soldering knowledge for commissioning.
Specifications & Features
| Manufacturer: | tinycontrol Marcin Nosek |
| Model Name: | Waterproof temperature sensor DS18B20 |
| Manufacturer Part Number (MPN): | LANKON-029 |
| Shop SKU: | ART1323 |
| Product Type: | External, digital temperature sensor (Accessories) |
| Sensor Type (Chip): | Digital Thermometer DS18B20 |
| Interface / Protocol: | 1-Wire® Bus |
| Temperature Measurement Range: | -55 °C to +125 °C |
| Accuracy: | ±0.5 °C (in the range of -10 °C to +85 °C) |
| Resolution (selectable): | 9-Bit to 12-Bit (0.5 °C, 0.25 °C, 0.125 °C, 0.0625 °C) |
| Operating Voltage: | 3.0 V to 5.5 V DC |
| Connection Type: | 3-wire cable, open ends (unterminated) |
| Typical Cable Colors: | Red (VCC), Black (GND), Yellow/White (DATA) |
| Cable Length: | approx. 90 cm |
| Cable Diameter: | approx. 4 mm |
| Cable Sheath Material: | PVC (recommended for use up to 100 °C) |
| Probe Head Material: | Stainless Steel |
| Probe Head Dimensions (Ø x L): | 6 mm x 30 mm |
| Identification: | Unique 64-Bit serial number per sensor |
| Query Time: | < 750 ms |
| Protection Class (IP-Rating): | Described as 'waterproof', no official IP certification |
Scope of Delivery
| 1 x tinycontrol DS18B20 Temperature Sensor (LANKON-029) |
Frequently Asked Questions (FAQ)
What is the 1-Wire protocol and what advantage does it offer?
The 1-Wire protocol is a communication bus system that transmits data and optionally power over a single data line (plus ground). The main advantage lies in its extremely simple Cabling, as multiple sensors can be connected in parallel to the same line ("multidrop"), which significantly reduces installation effort for your Network.
Does the tinycontrol DS18B20 sensor require an external resistor?
Yes, for stable operation on the 1-Wire bus, a pull-up resistor (typically 4.7 kΩ) is required. This is connected between the data line (DATA) and the supply voltage (VCC) to ensure defined signal levels.
Can I extend the sensor cable myself?
Yes, the cable can be extended. Thanks to digital signal transmission, lengths of several tens of meters are possible. However, a high-quality, ideally shielded Cabling should be used to minimize interference.
How do I find the unique address of my DS18B20 sensor?
The 64-bit address of each sensor can be read out via software. Most programming libraries for 1-Wire (e.g., for Arduino or in the Tinycontrol Controller software) offer a search function that lists all devices connected to the bus and their unique addresses.
Is the sensor suitable for measuring saltwater or aggressive chemicals?
No. The probe is made of stainless steel, which can be attacked by saltwater or other corrosive liquids. Use in such media is not recommended and can lead to the destruction of the sensor.
What do the different cable colors stand for?
Typically, the color coding is as follows: Red for the supply voltage (VCC), Black for ground (GND), and Yellow or White for the data line (DATA). However, it is recommended to verify this before installation.
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