Water Level Switch and submersible water pump for your aquarium or home flowers watering automation in stock!

SNS-WATER-LEVEL

SNS-WATER-LEVEL is floating magnet with reed contact sensor with travel length of 50 mm. It allow you to switch on off small pump which to keep the fluid level constant and to refill it.  You can directly connect to Arduino or ESP32 IoT boards GPIO.

IMM-WATER-PUMP

IMM-WATER-PUMP is silent submersible water pump which can help you to filter the aquarium water or to watering your flowers at home. It works with 3VDC and consume 0.12A.

 

ESP32-POE Open Source Hardware IoT development board with WiFi/BLE/100Mb Ethernet with 802.3 POE is in stock!

ESP32-POE-1

ESP32-POE board is now in stock. The prices start from EUR 14.36 for 50 pcs order.

This board offers Open Source Hardware / FOSS solution and building block for distributed sensor network with power over existing LAN infrastructure.

Possible use cases are Home automation, Industrial machine logging, remote environmental monitoring, access control, remote displays etc.

The board contains ESP32-WROOM-32 module with WiFi/BLE and Ethernet connectivity , RESET and USER buttons, micro SD card, LiPo battery charger and LiPo connector which allow board to work even with power supply drops.

The UEXT connector on the board can be used to connect many different sensors like:

Si3402-B chipset takes care for the power over ethernet, it’s IEEE 802.3 compliant, including pre-standard (legacy).

Important notice, to keep board compact and as it’s main purpose is to connect to cloud different remote sensors there is no galvanic isolation between board and the power delivered by the LAN switch or router.

ESP32-POE has internal programming interface and you can program it with Espressif SDK or Arduino via USB cable. As the board is not galvanic isolated from the Ethernet power supply, before you connect the USB cable to your computer you should remove the Ethernet cable or you should use USB-ISO between your computer the ESP32-POE!

 

New Robotics and CNC products in stock

ROBOT-GRIP

We have now in stock many new Robotics and CNC components:

KITS:

ROBOT-2WDL-KIT Robot platform with two motors with wheels and encoders

KIT

ROBOT-LINE-FOLLOW Robot platform with analogue line follower

ROBOT-LINE-FOLLOW

 

Micro motors:

MOTOR-200806 12000 rpm brush motor working at 3-6VDC

MOTOR-200806a

MOTOR-F1607 small drone motor with fan working on 3-6VDC and speed up to 50 000 rpm

MOTOR-F1607

VIBRATING-MOTOR-3X8 small vibrating motor only 3×8 mm size! you can use it to build small bug robot 🙂

VIBRATING-MOTOR-3X8.jpg

 

Stepper motors:

SM-17HS4023 Stepper motor for CNC XY table or 3D printer 42x42x23mm

SM-17HS4023-1

SM-42HB34F08AB Stepper motor for CNC XY table or 3D printer 42x42x34mm

42HB34F08AB

SM-5VDC-DRV Stepper motor with 1:64 gear and driver!

SM-5VDC-DRV

SM-60SL Stepper motor with 48 mm screw

SM-60SL

Robot hand:

ROBOT-GRIP Robot hand which works together with servo motor to open and close

ROBOT-GRIP

Gear motors:

MG-12V-M4X55 Gear motor with M4x55mm screw can be used for small CNC table or Door lock/unlock mechanism.

MG-12V-M4X55

MG-6V-1-380 Very compact Gear motor 6VDC 30 RPM can be used for blinder open, close

MG-6V-1:380

CARDAN-5X8 and CARDAN-5X5 Free joint for Boat fan or blinders open/close

CARDAN

Linear guides:

LINEAR-GUIDE-400MM Linear slide with 400 mm length

MGN12L400

SCREW-T8X8-300MM Trapeziodal screw with brass nut 300 mm

SCREW-T8X8

Shaft support:

SK8, SK10

SK08

SHF8, SHF10, SHF12

SHF12

Wide range of Micro Bearings

604UU

GT2 Pulleys and Belts:

GT2-BELT200-6MM

GT2-5T60-6MM

Aluminum frame corners for 20×20 , 30×30 and 40×40 profiles:

ALU-L

 

Strong neodymium magnets 30x10x3 and 10x10x10:

MAGNET-30x10x3

Ever wondered how much current your USB devices use and how stabile is your USB voltage? Now you can measure!

USB-POWER

Some USB devices like 3G modems, WiFi etc in active mode draw lot of current and cause problems, to monitor the current consumption and how stabile is your USB voltage you can use this USB-POWER-METER.

The consumption is measured and displayed with 10mA accuracy. Voltage with 10mV accuracy.

Is it hot or not? Contactless preciese Infra Red temperature measurement with Open Source Hardware MOD-IR-TEMP

MOD-IR-TEMP-bb

MOD-IR-TEMP is UEXT module which could be easily connected to all our boards with UEXT connector. It has MLX90614 contactless Infra red thermometer which allow you to measure objects temperature from distance.

MLX90614 has internal temperature sensor which can sense temperature in range -40+125C and Infra red camera which can sense external objects temperature in range -70+380C with resolution 0.02C and is calibrated with precision 0.5C in range 0-50C.

There are two ways to connectMOD-IR-TEMP to other boards – first is to use UEXT connector:

MOD-IR-TEMP-w

MLX90614 works on +3.3V so it’s important if you use Arduino board to make sure it operates at 3.3V or you will damage the sensor.

OLIMEXINO-32U4 has jumper which selects on what voltage it operates 5 or 3.3V you must put the jumper in 3.3V.

The sensor is read via I2C, Adafruit has library included in Arduino library manager.

UEXT onOLIMEXINO-32U4 has power enable and to operate D8 pin should be placed in LOW state.

Here is code:

#include <Wire.h>
#include "Adafruit_MLX90614.h"

Adafruit_MLX90614 modIrTemp = Adafruit_MLX90614();

void setup() {
 pinMode(8,OUTPUT);   //the following two lines enable power supply 3.3V on UEXT connector
 digitalWrite(8,LOW); //you do not need them if you use wire jumpers
 modIrTemp.begin(); 
 Serial.begin(115200);
}

void loop() {

Serial.print("Ambient = "); Serial.print(modIrTemp.readAmbientTempC()); 
 Serial.print("*C\tObject = "); Serial.println(modIrTemp.readObjectTempC());

 delay(1000); // can adjust this for faster/slower updates
}

If you use breadboard you should connect MOD-IR-TEMP GND, 3.3V and SDA to D2, SCL to D3. In this case you do not need to set D8 LOW to operate.

MOD-IR-TEMP allow precise temperature measurement from distance, we are doing some experiments to measure PCB reflow temperature from distance and to measure body temperature.

Our experiments show that how good the temperature is measured depend on object surface. Dark objects temperature is measured better than shiny objects.

If you place your hand in the front of the sensor the temperature is measured correctly from distance 0 to about 5 cm, then the measurement start to register lower temperature. Our guess is that the build in optics has limitation, if you want to measure temperature from greater distance you should add proper optics.

 

New product in stock air/water normal closed magnetic valve driven with 12V with quick connect for 6 mm sleeve

Oli DudeN01

We have new product in stock:

WATER-VALVE-6.5MM-12VDC

WATER-VALVE-6-5MM-12VDC is electro-magnetic valve with normal closed path. It’s driven with 12VDC/0.54A and when power supply is applied opens the valve. It has quick connect for 6 mm sleeves and makes water/air pipes attachment and dis-attachment easy. The valve can work with 0-0.8MPa (0-8 bar, 0-116 psi, 0-7.9 atm) pressure of the air or water.

With this valve and ESP32-EVB you can make IoT watering system, which allow you to switch on and off water supply to your garden or plants via internet.

The demo code is written with Arduino for ESP32-EVB and sources are at Github.

When the server is run you can view the status in your local network:

Screenshot from 2017-12-07 14-59-34

You view the current time and with arrows can adjust time when the watering to start or stop. You can also directly drive your valve with ON and OFF buttons.

 

New Product in stock MOD-WIFI-AR9271 libre drivers and firmware WiFi dongle

MOD-WIFI-AR9271-2

AR9721 chipset is the only one on the market with completely open source linux drivers and firmware, this make it WiFi chipset of choice for people who respect their freedom.

We have MOD-WIFI-AR9721-ANT for quite some time and it’s very popular item, but the 200mm antenna make it not quite small. Now we add to our web shop the version without external antenna. It’s with 85 x 25 x 10 mm dimension and have same working distance as the external antenna version.

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