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00 ω r2 r3 r8 10 kω r5 r6 r9 r10 r11 1 kω r7 optional not included p1 potentiometer 100 kω linear capacitors c1 22 µf 16v c2 c4 10 nf c3 150 pf miscellaneous k1 4 1 pin socket k2 k3 3 5 mm socket raspberry pi pico pushbutton angle mount 0 96 monochrome i²c oled display pcb 150292 1 read 34 95 29 95 best price quantity add to cart 19 quantity add to cart elektor labs elektor esp32 energy meter 1 review the elektor esp32 energy meter is a device designed for real time energy monitoring and smart home integration powered by the esp32 s3 microcontroller it offers robust performance with modular and scalable features the device uses a 110 230 vac to 12 vac step down transformer for voltage sampling ensuring galvanic isolation and safety its compact pcb layout includes screw type terminal blocks for secure connections a qwiic connector for additional sensors and a programming header for direct esp32 s3 configuration the energy meter is compatible with single phase and three phase systems making it adaptable for various applications the energy meter is simple to set up and integrates with home assistant offering real time monitoring historical analytics and automation capabilities it provides accurate measurements of voltage current and power making it a valuable tool for energy management in homes and businesses features comprehensive energy monitoring get detailed insights into your energy usage for smarter management and cost savings customizable software tailor functionality to your needs by programming and integrating custom sensors smart home ready compatible with esphome home assistant and mqtt for full smart home integration safe flexible design operates with a 110 230 vac to 12 vac step down transformer and features a pre assembled smd board quick start includes one current transformer ct sensor and access to free setup resources specifications microcontroller esp32 s3 wroom 1 n8r2 energy metering ic atm90e32as status indicators 4x leds for power consumption indication2x programmable leds for custom status notifications user input 2x push buttons for user control display output i²c oled display for real time power consumption visualization input voltage 12 16 vac via a step down transformer 110 230 vac to 12 vac clamp current sensor yhdc sct013 000 100 a 50 ma included smart home integration esphome home assistant and mqtt for seamless connectivity connectivity header for programming qwiic for sensor expansion applications supports single phase and three phase energy monitoring systems dimensions 79 5 x 79 5 mm included 1x partly assembled board smds are pre mounted 2x screw terminal block connectors not mounted 1x yhdc sct013 000 current transformer required power transformer not included downloads datasheet esp32 s3 wroom 1 datasheet atm90e32as datasheet sct013 000 frequently asked questions faq from prototype to finished product what started as an innovative project to create a reliable and user friendly energy meter using the esp32 s3 microcontroller has evolved into a robust product initially developed as an open source project the esp32 energy meter aimed to provide precise energy monitoring smart home integration and more through meticulous hardware and firmware development the energy meter now stands as a compact versatile solution for energy management read 79 95 64 95 best price quantity add to cart out of stock generic icl8038 signal generator diy kit 5 hz 400 khz 5 reviews out of stock the icl8038 signal generator delivers versatile waveforms including sine triangle square and forward reverse sawtooth making it suitable for a wide range of applications powered by the icl8038 chip and high speed operational amplifiers it ensures exceptional precision and signal stability with a frequency range of 5 hz to 400 khz it supports applications from audio to radio frequencies its adjustable duty cycle ranging from 2 to 95 allows for precise waveform customization to meet various needs the diy kit is beginner friendly featuring through hole components for easy assembly it includes all necessary parts an acrylic shell and a detailed manual providing everything required to build and use the signal generator efficiently specifications frequency range 5 hz 400 khz adjustable power supply voltage 12 v 15 v duty cycle range 2 95 adjustable low distortion sine wave 1 low temperature drift 50 ppm c output triangular wave linearity 0 1 dc bias range 7 5 v 7 5 v output amplitude range 0 1 v 11 vpp working voltage 12 v dimensions 89 x 60 x 35 mm weight 81 g included pcb incl all necessary components acrylic shell manual read out of stock 14 95 members 13 46 out of stock 60 out of stock generic diy mini digital oscilloscope kit 1 review out of stock the diy mini digital oscilloscope kit with shell is an easy to build kit for a tiny digital oscilloscope besides the power switch it has only one other control a rotary encoder with a built in pushbutton the kit s microcontroller comes preprogrammed the 0 96 oled display has a resolution of 128 x 64 pixels the oscilloscope features one channel that can measure signals up to 100 khz the maximum input voltage is 30 v the minimum voltage is 0 v the kit consists of through hole components tht are surface mount devices smd therefore assembling the kit means soldering smd parts which requires some soldering experience specifications vertical range 0 to 30 v horizontal range 100 µs to 500 ms trigger type auto normal and single trigger edge rising and falling trigger level 0 to 30 v run stop mode automatic frequency measurement power 5 v micro usb 10 hz 5 v sinewave output 9 khz 0 to 4 8 v square wave output display 0 96 inch oled screen dimensions 57 x 38 x 26 mm downloads documentation read out of stock 19 95 7 98 best price out of stock out of stock elektor labs elektor neon lamp dice 4 reviews out of stock a retro roll with a neon soul led based dice are common but their light is cold not so for this electronic neon dice which displays its value with the warm glow of neon lamps it is perfect for playing games on cold dark winter evenings the pips of the dice are neon lamps and the random number generator has six neon lamps to show that it is working even though the dice has an on board 100 v power supply it is completely safe as with all elektor classic products the dice too has its circuit diagram printed on the front while an explanation of how the circuit works can be found on the rear side the neon lamp dice comes as a kit of easy to solder through hole parts the power supply is a 9 v battery not included features warm vintage glow elektor heritage circuit symbols tried tested by elektor labs educational geeky project through hole parts only included printed circuit board all components wooden stand required 9 v battery component list resistors tht 150 v 0 25 w r1 r2 r3 r4 r5 r6 r14 1 mω r7 r8 r9 r10 r11 r12 18 kω r13 r15 r16 r17 r18 r21 r23 r24 r25 r26 r28 r30 r33 100 kω r32 r34 1 2 kω r19 r20 r22 r27 r29 4 7 kω r31 1 ω capacitors c1 c2 c3 c4 c5 c6 470 nf 50 v 5 mm pitch c7 c9 c11 c12 1 µf 16 v 2 mm pitch c8 470 pf 50 v 5 mm pitch c10 1 µf 250 v 2 5 mm pitch inductors l1 470 µh semiconductors d1 d2 d3 d4 d5 d6 d7 1n4148 d8 stps1150 ic1 ne555 ic2 74hc374 ic3 mc34063 ic4 78l05 t1 t2 t3 t4 t5 mpsa42 t6 stq2ln60k3 ap miscellaneous k1 pp3 9 v battery holder ne1 ne2 ne3 ne4 ne5 ne6 ne7 ne8 ne9 ne10 ne11 ne12 ne13 neon light s2 miniature slide switch s1 pushbutton 12 x 12 mm read out of stock 39 95 members 35 96 out of stock quantity add to cart elektor labs elektor milliohmmeter adapter 1 review the elektor milliohmmeter adapter uses the precision of a multimeter to measure very low resistance values it is an adapter that converts a resistance into a voltage that can be measured with a standard multimeter the elektor milliohmmeter adapter can measure resistances below 1 mω using a 4 wire kelvin method it is useful for locating short circuits on printed circuit boards pcb the adapter features three measurement ranges 1 mω 10 mω and 100 mω selectable via a slide switch it also includes onboard calibration resistors the elektor milliohmmeter adapter is powered by three 1 5 v aa batteries not included specifications measurement ranges 1 mω 10 mω 100 mω 0 1 power supply 3x 1 5 v aa batteries not included dimensions 103 x 66 x 18 mm compatible with hammond 1593n type enclosure not included special feature on board calibration resistors downloads documentation read 34 95 members 31 46 quantity add to cart out of stock generic arduino controlled drawing robot 2 reviews out of stock this versatile plotter robot arm diy kit for arduino is equipped with mg90s metal gear servo motors to ensure precise and stable drawing movements features fully compatible with arduino ide includes complete source code for easy development and customization equipped with robust mg90s metal gear servo motors for accuracy and durability includes a bluetooth module enabling wireless operation via a dedicated app specially designed robotic arm tip securely holds pens or markers with a diameter of 8 10 mm ideal for sketches and detailed drawings included arduino compatible nano motherboard nano expansion board bluetooth module mg90s all metal gear servo motors aluminum structural frame thickened stable base plate screw and fastening accessories connecting wires usb data cable read out of stock 64 95 members 58 46 out of stock 60 quantity add to cart elektor labs elektor one armed bandit 2 reviews pull down lever for highest score this elektor circuit classic from 1984 shows a playful application of cmos 400x series logic ics in combination with leds a highly popular combination at the time the project imitates a spinning digit type slot machine the game to play the game first agree on the number of rounds player 1 actuates the switch lever as long as desired and releases it the leds then show the score which is the sum of the 50 20 10 5 digits lit up if the play again led lights player 1 has another free round if not it s player 2 s turn the players keep tab of their scores and the highest score wins features leds indicate score multi player and play again elektor heritage circuit symbols tried tested by elektor labs educational geeky project through hole parts only included printed circuit board all components wooden stand bill of materials resistors 5 250 mw r1 r2 r3 r4 100kω r5 r6 r7 r8 r9 r10 1kω capacitors c1 4 7nf 10 50v 5mm c2 4 7μf 10 63v axial c3 c4 100nf 10 50v ceramic x7r 5mm semiconductors led1 led6 red 5mm t1 3 4 ic1 74hc4024 ic2 74hc132 miscellaneous s1 switch toggle 21mm lever spdt momentary s2 switch tactile 24v 50ma 6x6mm s3 switch slide spdt ic1 ic2 ic socket dip14 bt1 pcb mount cr2032 battery retainer clip desktop stand pcb 230098 1 not included bt1 cr2032 coin cell battery read 39 95 15 98 best price quantity add to cart out of stock makerfabs arduino uno experimenting kit no reviews out of stock with this kit you can built all the projects described in the book mastering the arduino uno r4 the kit comes with several leds sensors actuators and other components the purpose of the kit is to make a flying start with hardware and software aspects of projects designed around the arduino uno microcontroller system included 1x rfid reader module 1x ds1302 clock module 1x 5 v stepper motor 1x 2003 stepper motor drive board 5x green led 5x yellow led 5x red led 2x rocker switch 1x flame sensor 1x lm35 sensor module 1x infrared receiver 3x light dependent resistors ldrs 1x ir remote controller 1x breadboard 4x pushbutton with four caps 1x buzzer 1x piezo sounder 1x adjustable resistor potentiometer 1x 74hc595 shift register 1x 7 segment display 1x 4 digit 7 segment display 1x 8x8 dot matrix display 1x 1602 i²c lcd module 1x dht11 temperature and humidity module 1x relay module 1x sound module set of dupont cables set of breadboard cables 1x water sensor 1x ps2 joystick 5x 1 k ohm resistor 5x 10 k ohm resistor 5x 220 ohm resistor 1x 4x4 keypad module 1x 9g servo 25 cm 1x rfid card 1x rgb module 1x 9 v battery dc jack not included mastering the arduino uno r4 book arduino uno r3 r4 board read out of stock 39 95 members 35 96 out of stock 17 quantity add to cart elektor labs elektor wordy led christmas tree 5 reviews multilingual diy kit incl 27 rgb leds raspberry pi pico bring some engineering magic to your festive season with the wordy led christmas tree a unique diy electronics kit designed by elektor this beautifully engineered 3d christmas tree combines eleven pcbs a raspberry pi pico and 27 addressable rgb leds to illuminate christmas greetings in seven languages danish dutch english french german italian and spanish unlike ordinary led trees each word inside the tree has its own light chamber creating a refined softly glowing display without sound or flicker the leds are fully ws2812 compatible and driven via the popular adafruit neopixel library making custom animations and color effects easy to create perfect for makers tinkerers and festive electronics fans this kit offers both an enjoyable build and a striking conversation worthy decoration the wordy christmas tree is your perfect holiday maker project features multilingual greetings 7 languages milled into the front panel 3d construction from 11 interlocking pcbs powered by raspberry pi pico 27 individually addressable rgb leds pre mounted smooth fade in and fade out animations fully programmable using the arduino ide a 5 v power supply with micro usb connector capable of 1 a is recommended for maximum brightness not included dimensions h x w x d 130 x 115 x 75 mm included all required pcbs with leds and other smd parts mounted raspberry pi pico to be soldered programmed by the user 3 way pin header to be soldered by the user 3 way pin socket to be soldered by the user 4x self adhesive dome bumpers project page elektor labs read 59 95 49 95 best price quantity add to cart 18 quantity add to cart elektor labs elektor sand clock for raspberry pi pico incl laser head upgrade 1 review this bundle contains the popular elektor sand clock for raspberry pi pico and the new elektor laser head upgrade offering even more options for displaying the time not only can you engrave the current time in sand you can now alternatively write it on a glow in the dark foil or create green drawings contents of the bundle elektor sand clock for raspberry pi pico normal price 50 elektor laser head upgrade for sand clock normal price 35 elektor sand clock for raspberry pi raspberry pi based eye catcher a standard sand clock just shows how time passes in contrast this raspberry pi pico controlled sand clock shows the exact time by engraving the four digits for hour and minute into the layer of sand after an adjustable time the sand is flattened out by two vibration motors and everything begins all over again at the heart of the sand clock are two servo motors driving a writing pen through a pantograph mechanism a third servo motor lifts the pen up and down the sand conta...
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