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Reference: RBD-1354
Length: 8 inches/20 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
Reference: RBD-0351
Contactless transmission of data and supply energy (no battery needed) Operating distance: Up to 100mm (depending on antenna geometry) RoboticsBD Operating frequency: 13.56MHz Data transfer: 106 kbit/s Data integrity: 16 Bit CRC, parity, bit coding bit counting Anticollision Typical ticketing transaction: <100 ms ( including backup management)...
Reference: 0245
Choose your desire Resistor value from below:
Reference: 0031
3 Types Available (Please select from option) 1. Male to Male 2. Male to Female 3. Female-Female
Reference: RBD-0768
Size: 5mm Color: RED Head Shape: Round Lens Appearance: Transparent
Reference: RBD-0761
Breadboard friendly Mounting Style: Through Hole Mounting Direction: Vertical
Reference: RBD-0094
The Arduino Uno R3 High-Quality Edition Arduino UNO in Bangladesh Micro-controller : ATmega328. Operating Voltage : 5V. Input Voltage (recommended) : 7-12V. Digital I/O Pins : 14 (of which 6 provide PWM output). Analog Input Pins : 6. The Arduino Uno R3 High-Quality Edition embodies superior craftsmanship and meticulous attention to detail, resulting in...
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Free Ship Over 5000 BDT
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No Warranty
No Replacement
The soil nutrient content can be easily measured using NPK Soil Sensor & Arduino. Measurement of soil content N (nitrogen), P (phosphorus), and K (potassium) is necessary to determine how much additional nutrient content is to be added to soil to increase crop fertility. The soil fertility is detected using NPK sensors.
A major component of soil fertilizer is nitrogen, phosphorus, and potassium. The knowledge of the soil nutrient concentration can help us to learn about nutritional deficiency or abundance in soils used to endorse plant production.
There are multiple methods of measuring the soil nutrient content using some optical sensors or using a spectrometer. But the spectral analysis method is not convenient and the drawback is the data are only 60-70% correct. While comparing the spectral analysis method with traditional wet chemistry methods, the accuracy of the products is yet to be fully resolved, given the paucity of data in that regard.
The Soil NPK sensor is a low-cost, quick responsive, high precision & portable Sensor that works with Modbus RS485. The advantage of this sensor over a traditional detection method is that it gives very fast measurement & data are highly accurate. All you need is to insert its probe into the soil and get the reading using Arduino. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
Note: Product images/ Components brand may vary from actual product as our stock rotates.
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This sensor does not require any chemical components, This sensor has Modbus communication port where we cannot connect it with microcontrollers directly but by using an intermediate Modbus module. We can connect it to most of the microcontrollers like Arduino, ESP32 and measure the Nitrogen, Phosphorus and Potassium values in Realtime, just by inserting the probes in the soil. This sensor also detects the type of the soils like Acidic soil, Alkaline soil. You need an external Modbus module such as RS485/MAX485 to connect the senor with microcontrollers.
0This sensor works with voltage range of 5v-30V with maximum power consumption less than 0.15watts. which works in the temperature range of 5-45 Celsius. Many microcontrollers such as Arduino, PIC microcontrollers, 8051 microcontrollers family, ESP etc. support this soil NPK sensor as they have baud rates of 2400,4800 and 9600. This soil NPK sensor is said to have a high precision measurements with an accuracy of ±2%, with measuring resolution of 1mg/Kg(mg/liter) and can measure the Nitrogen, phosphorus and Potassium in the range between 0 to 1999mg/kg(mg/liter).
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| General Specification | |
| DC power supply (default) | DC 5-30V |
| Maximum power consumption | ≤0.15W (@12V DC, 25℃) |
| Operating temperature | 0℃~55℃ |
| Nitrogen phosphorus potassium | range: 1-1999 mg/kg (mg/L); resolution rate: 1 mg / kg (mg / L), accuracy of: ± 2% FS |
| Response time | <1S |
| Protection | IP68 |
| Probe materials | stainless steel |
| Sealing material | black flame-retardant epoxy resin |
| Cable default length | 1 m |
| Dimensions | 45*15*123mm |
| Output signal | RS485 (Modbus protocol) |
| Shipment Weight | 0.140 kg |
| Shipment Dimensions | 15 × 11 × 5 cm |
Please allow 5% measuring deviation due to manual measurement.
You can find the source code and Interfacing Tutorial in the link below (Ask for permission with your ORDER ID)
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Getting 255 for all NPK values:
Getting no response from sensor data
Important Notes:
After analysis we found that this sensor is not completely accurate but works at an acceptable accuracy. Please try to find the sensor manufacturer datasheet to get the working enquiry frame data. Calibrating this sensor is still a dreamy hope for many users. This sensor is purely for soil only, measuring it in water gives foul results.
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1 x Soil NPK Sensor Agricultural RS485/Modbus
The latest price of Soil NPK Sensor Agricultural RS485/Modbus in Bangladesh is BDT 11,990 You can buy the Soil NPK Sensor Agricultural RS485/Modbus at best price from our RoboticsBD or visit RoboticsBD Office.
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Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. |
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Product Images are shown for illustrative purposes only and may differ from the actual product. |
Reference: RBD-0032
USB Driver: CH340 Operating Voltage (logic level): 5V With Mini USB 8 analog inputs ports: A0 ~ A7 14 Digital input / output ports: TX, RX, D2 ~ D13 1 pair of TTL level serial transceiver ports RX / TX Using Atmel Atmega328P-AU MCU There is a bootloader installed in it Standard 0.1” spacing DIP (breadboard friendly). Manual reset switch. Please select...
Reference: RBD-0094
The Arduino Uno R3 High-Quality Edition Arduino UNO in Bangladesh Micro-controller : ATmega328. Operating Voltage : 5V. Input Voltage (recommended) : 7-12V. Digital I/O Pins : 14 (of which 6 provide PWM output). Analog Input Pins : 6. The Arduino Uno R3 High-Quality Edition embodies superior craftsmanship and meticulous attention to detail, resulting in...
Reference: RBD-0145
Dual output mode, analog output more accurate A fixed bolt hole for easy installation With power indicator (red) and digital switching output indicator (green) Having LM393 comparator chip, stable. Operating Voltage: 3.3V~5V
Reference: RBD-0353
Driver IC: SSD1306 Support wide voltage: 3.3V-5V DC Communication: IIC Working temperature: -30-80 degrees. RoboticsBD
Reference: RBD-0560
On-board MAX485 chip, A low power consumption for the RS-485 communication, slew-rate limited transceiver. A low power consumption for the RS-485 communication Onboard then 5.08 (mm) pitch 2P terminal to facilitate RS-485 communication wiring. Slew-rate limited transceiver All pins of the chip have been lead to can be controlled through the...
Reference: RBD-1042
Operating Voltage: 3.3 ~ 5.5 VDC. Operating Current: 5mA. Interface: PH2.54-3P. Dimensions mm(LxWxH): 98 x 23 x 4. Supports 3-Pin Gravity Sensor interface Analog output. Weight (gm): 15.
Reference: RBD-1064
Size: 1.3 inch Resolution: 128 x 64 Controlling Chip: SSH1106 Driving Voltage: 3.3-5V Operating Temperature: -40~70 celsius Interface Type: IIC Light Color: Blue If you want to purchase White color 1.3 inch OLED display module click here
Reference: RBD-1671
ESP32 Bluetooth Wi-Fi development board, support NodeMCU / Arduino DHT11 temperature and humidity sensor CP2104 communication chip USB TO TTL Micro USB port Soil probe (long) soil temperature and humidity detection module 18650 Lithium Battery Holder Powered (Battery is not included)
Reference: RBD-0338
Brand: Waveshare
Sharp GP2Y1010AU0F onboard, Detecting fine particle larger than 0.8μm Low power consumption Analog voltage output The output level is linear with dust density Check out New Product Optical Dust Sensor- GP2Y1010AU0F
Reference: RBD-1644
940nm laser classified as class 1 under operation condition by IEC 60825-1:2014-3rd edition Small ceramic package(20×13.2×2.0mm) Long range absolute range measurement up to 1.8m within 5% accuracy at indoor
Reference: RBD-0393
Dimensions: 40 x 27 x 15 (LxWxH) mm. RoboticsBD Weight: 10gm (without Hat). 2.54mm pin interface leads. Operating Voltage: 5V. Long service life and stable performance. Standard interface and electronic building blocks. Widely use in Arduino DIY projects. RoboticsBD
Reference: RBD-0995
Diameter: 5mm No. of Pins: 2 Type of Mounting: PCB Through Hole Maximum Operating Temperature: +800°C (Approx.) Dark resistance:1-20 Mohm
Reference: RBD-2313
Sensing range: 3 – 80cm. Input voltage: 5VDC. Current Consumption: 300mA. Digital Output. Cable length: 1m. Diffuse reflective type.
Reference: RBD-0152
Using SW-420 normally closed type vibration sensor Comparator output, clean signal, good waveform, strong driving ability, >15mA Operating voltage 3.3V ~ 5V Output format: digital switching output (0 and 1) Using a wide voltage LM393 comparator With bolt holes for easy installation
Reference: RBD-1671
ESP32 Bluetooth Wi-Fi development board, support NodeMCU / Arduino DHT11 temperature and humidity sensor CP2104 communication chip USB TO TTL Micro USB port Soil probe (long) soil temperature and humidity detection module 18650 Lithium Battery Holder Powered (Battery is not included)
Reference: RBD-2087
Voltage 5V Photo interruption module triggers a signal when light is blocked between the opening of the sensor.
Reference: RBD-0690
The main chip: ISD1820. Operating Voltage: DC 3V-5V. Loudspeaker: 8Ω, 0.5W. An easy to use 10 seconds of voice recording. High-quality, natural voice restored. Can be used as a propaganda module. With looping, jog playback, single-pass play function.
Reference: RBD-0313
Low power consumption, Low cost, and Compact size Read and write chip Fully integrated at 13.56MHz
Reference: RBD-0665
Operating voltage: 5V Provide both digital and analog output Adjustable sensitivity. RoboticsBD Output LED indicator Compatible with Arduino TTL Compatible Bolt holes for easy installation
Reference: RBD-2172
Easily customizable to a wide range of sizes Cost-effective Ultra-thin; 0.45 mm Robust; up to 10 million actuations Simple and easy to Integrate. RoboticsBD Force Sensitive Resistor Square High Quality
Reference: RBD-0554
VL53L0X 3-in-1 ranging and gesture detection sensor Regulator: 5 to 2.8V range input voltage (output voltage: 2.8V) VL53L0X signal interface level shifter Serial Port PWM Output True distance measurement independent of target size and reflectance Breakout board, easy to integrate into the customer device Allows basic gesture recognition use case. RoboticsBD
Reference: RBD-0416
Onboard 8 key TTP226 capacitive touch induction IC. RoboticsBD Onboard 8-way level indicator. Working voltage: 2.4 to 5.5 V. Modules, you can set the output mode, key output mode, the longest time and fast/low power output
Reference: RBD-0415
Has a signal output instruction When the output valid signal is high, the light goes out The sensitivity is adjustable (fine-tuning) The wide detection range of vibration, no direction With mounting holes, firmware installation is flexible and convenient. RoboticsBD
Reference: RBD-2095
Detection distance: 2-40cm IO Interface: 4-wire interfaces (- / + / S / EN) Output signal: TTL level Adjustment: adjust multi-turn resistance Effective angle: 35 ° **Please be advised that the majority of our customers have left negative reviews for this product. We recommend that you do not make a purchase unless you are absolutely certain that you can...
Reference: RBD-0414
A probe by new original installation import DS18B20 temperature sensor chip. RoboticsBD Chip each pin use heat shrinkable tube to prevent short circuit, internal sealing glue, waterproof, moistureproof. Stainless steel tube encapsulation waterproof moistureproof prevent rust. Stainless steel shell (6 * 45 mm), lead length 100 cm (shielding wire) use...
Reference: RBD-1728
IR Digital 38khz Infrared Receiver Sensor Module
Reference: RBD-1934
Dual signal output (analog output and TTL level output) The TTL output effective signal is low. Analog output 0 ~ 5V voltage, the higher the concentration the higher the voltage. Good sensitivity to hydrogen sulfide, liquefied gas, natural gas, city gas, and smoke. with long service life and reliable stability fast response recovery characteristics
Reference: RBD-1423
Sony IMX477R stacked, back-illuminated sensor. Resolution: 12.3 megapixels. Compatible with Raspberry Pi 1/2/3/4 boards Output: RAW12/10/8, COMP8 Back focus: Adjustable (12.5 mm–22.4 mm) Lens standards: C-mount, CS-mount (C-CS adapter included) IR cut filter: Integrated Wide Field of View suitable for CCTV applications Suitable for macro photography...
Reference: RBD-2148
Non-contact detection Suitable for liquids of various densities and forms Easy installation for all kinds of detection occasions Compatible with containers of various materials and thicknesses Reliable performance with anti-interference ability
Reference: RBD-1856
Dual channel stereo, high output power (3 w + 3 w power @ 5V and 4 ohms load).. Double panel wiring solves crosstalk. Super mini design allows it to be easily placed in a variety of digital products. 3W Output at 10% THD with a 4ΩLoad and 5V Power Supply. Filterless, Low Quiescent Current and Low EMI and Low Noise. Short Circuit Protection and Thermal...
Reference: RBD-0523
Module Power: 5.00V Module Size : 43 x 32mm(1.69×1.26″) Measuring Range :0 – 14PH Measuring Temperature: 0 – 60 ℃ Accuracy : ± 0.1pH (25 ℃)
Reference: RBD-1913
Onboard LDO Voltage regulator Can be interfaced with 3V3 or 5V Microcontroller. Tap/Double Tap Detection Free-Fall Detection Analog output Build in ultra low noise linear LDO voltage regulator Built-in onboard filters, which reduce noise from the motor and other high current electronics Power LED
Reference: RBD-0411
Low current consumption (typical 30 mA) CW or pulse operation Flat profile Long detection range (20 m) Supply voltage: 4.75V to 5.25V X-Band Frequency: 10.525 GHz Minimum Power Output: 13 dBm EIRP. RoboticsBD
Reference: RBD-2076
Operating Voltage:2.0v ~ 2.5v Current:10mA Diameter:5mm Color: Red + Green Beam Angle:150
Reference: RBD-0417
Easily customizable to a wide range of sizes Cost-effective Ultra-thin; 0.45 mm Robust; up to 10 million actuations Simple and easy to Integrate. RoboticsBD
Reference: RBD-0722
8-Megapixel native resolution high-quality Sony IMX219 image sensor Cameras are capable of 3280 x 2464 pixel static images Capture video at 1080p30, 720p60 and 640x480p90 resolutions All software is supported within the latest version of Raspbian Operating System No Infrared filter making it perfect for taking Infrared photographs or photographing objects...
Reference: RBD-2341
Operating Voltage: 2.7V ~ 5.5V Power Down Feature Stable Temperature Coefficient Can be directly interfaced with a Microcontroller Compatible with Arduino as well as Raspberry Pi.
Reference: RBD-0569
Acceleration, Gyroscope, and Magnetometer Power Supply: DC3.3V-5V Chip: MPU9250 Size: 22 mm x 17 mm. Gyro range : ± 250 500 1000 2000 ° / s Acceleration range: ± 2 ± 4 ± 8 ± 16g Magnetic field range: ± 4800uT 9 DOF modules
Reference: RBD-0133
830 Solder-less Points Ideal for Experimenting With Circuit Design In Labs Compatible with resistance, diodes, transistors, LED’s, Capacitors and other types of electronic components Colored coordinates for easy components placement. Accept a variety of wire sizes 20-29 AWG
Reference: RBD-0161
Model: LCD2004 Character Color: White Backlight: Blue Supply voltage: 5V Dimensions(L x W x H) mm: 98 x 60 x 12
Reference: RBD-0916
ROHS approved Mini Solar panel The solar cells are encased and protected by a durable outer poly frame Polycrystalline silicon Max work voltage:5V Max work current: 200ma Dimension: 90mm×90mmx3mm RoboticsBD
Reference: RBD-1042
Operating Voltage: 3.3 ~ 5.5 VDC. Operating Current: 5mA. Interface: PH2.54-3P. Dimensions mm(LxWxH): 98 x 23 x 4. Supports 3-Pin Gravity Sensor interface Analog output. Weight (gm): 15.
Reference: RBD-1405
Working voltage: 5.00V DC Working current: 40mA (MAX) Response time: <500ms Insulation resistance: 100MΩ (Min) Analogue output: 0~4.5V; Digital output: high/low-level signal (the corresponding threshold can be selected by adjusting the potentiometer) Operating temperature: -20℃~90℃
Reference: RBD-1915
Input voltage range : 3-34V DC Output voltage range : 4-35v DC adjustable Output current:3A Voltmeter range:0 to 40V,error +-0.1v Multiple output regulator. One button to switch input and output voltage display. Power-down memory function. Press the button for 3 seconds can turn OFF/ON the LED display.
Reference: RBD-0823
LDR module 4 PIN Operating voltage 3.3V-5V Signal output indicator light. LDR module 4 PIN Able to detect ambient brightness and light intensity Adjustable sensitivity (via blue digital potentiometer adjustment)
Reference: RBD-1642
For Standard LCD 16x2 with Male Header. Press here For Standard LCD 16x2 with Female Header. Press here For Standard LCD 16x2 with I2C adapter board soldered. Press here. For Standard LCD 16x2 with White Background. Press here. For Standard LCD 16x2 with Blue Background. Press here.
