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260RPM 12GA 3V 3mm Shaft Mini DC Geared Gear Box Motor for DIY Toys From Amico

260RPM 12GA 3V 3mm Shaft Mini DC Geared Gear Box Motor for DIY Toys

260RPM 12GA 3V 3mm Shaft Mini DC Geared Gear Box Motor for DIY Toys
From Amico

Price: $9.57

Availability: Usually ships in 1-2 business days
Ships from and sold by uxcell

2 new or used available from $9.57

Product Description

  • Rectangle shape and with 3mm diameter shaft and 2 pin connectors. Great replacement for the rusty or damaged DC geared motor on the machine. Widely used on auto shutter, Pan/ Tilt camera, Slot machine, Money detector, Coin refund devices, etc.


Product Details

  • Amazon Sales Rank: #146112 in Home Improvement
  • Brand: Amico

Features

  • Product Name : DC Geared Motor;Rated Voltage : DC 3V;Rated Current : 30MA ( no load )
  • Speed : 260 RPM;Shaft Diameter : 3mm/ 0.118"
  • Gearbox Size : 15 x 12 x 10mm/ 0.59" x 0.47" x 0.39"(L*W*T);Overall Size : 36 x 12 x 10mm/ 1.4" x 0.47" x 0.39"(L*W*T)
  • Main Color : Gray, Brass Tone;Material : Metal
  • Weight : 10g;Package : 1 x DC Geared Motor

Customer Reviews

Most helpful customer reviews
See all customer reviews...

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RioRand Stepper Motor 5V DC 4-Phase 5-Wire with ULN2003 Driver Board From RioRand

RioRand Stepper Motor 5V DC 4-Phase 5-Wire with ULN2003 Driver Board

RioRand Stepper Motor 5V DC 4-Phase 5-Wire with ULN2003 Driver Board
From RioRand

List Price: $15.95
Price: $3.43

Availability: Usually ships in 1-2 business days
Ships from and sold by GO Carol(Ships From Hong Kong)

30 new or used available from $2.25
Average customer review:
(40 customer reviews)

Product Description

RioRand Stepper Motor 5V DC 4-Phase 5-Wire + ULN2003 Driver Board

Product Details

  • Amazon Sales Rank: #1950 in Car Audio or Theater
  • Color: Stepper motor with ULN2003
  • Brand: RioRand
  • Model: RR-ST-MTO-DI28BYJ-48+ULN2003
  • Dimensions: .66 pounds

Features

  • Number of Phase: 4.
  • Speed Variation Ratio 1/64.
  • Frequency 100Hz.

Customer Reviews

Most helpful customer reviews
27 of 27 people found the following review helpful.
5Very nice, and surprisingly powerful
By Brian P. Lawler
I didn't expect this tiny motor to be very powerful, but I am happy that it exceeds my expectations. The motor is geared down 64:1, making it extremely accurate and moderately strong. It resists backlash and cannot be turned manually. Driving the motor with a 9V battery is easy, and even writing the code to run it from an Arduino is pretty easy (there are lots of examples on the web).

I had my first prototype running in days.
23 of 24 people found the following review helpful.
3low speed stepper
By dd42
The motor takes 64 steps per revolution and has a 64:1 gear ratio, so it takes a lot of steps to turn once -- 4096 steps! So you get 1 revolution in 5 to 10 seconds with this motor. There is no documentation with the motor or board, I ended up looking up both the motor and driver chip spec sheets to figure out how to connect and drive it correctly, at which point I didn't really need the driver board anymore -- could have just wired it up on a breadboard more easily. Top speed I have achieved is about 10RPM, but the motor was heating substantially, so I wouldn't recommend running it that fast for very long.
17 of 18 people found the following review helpful.
5Works great.
By Soviet911
Used this little guy for pressure control system to actuate a valve, works great, simple and easy to program for ardruino, over 300hrs of non stop operation and still going strong.
See all 40 customer reviews...

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INNOVA 3320 Auto-Ranging Digital Multimeter From Innova

INNOVA 3320 Auto-Ranging Digital Multimeter

INNOVA 3320 Auto-Ranging Digital Multimeter
From Innova

List Price: $34.23
Price: $19.96 & eligible for FREE Shipping on orders over $35. Details

Availability: Usually ships in 24 hours
Ships from and sold by Amazon.com

27 new or used available from $17.97
Average customer review:
(562 customer reviews)

Product Description

The INNOVA 3320 is a Auto-Ranging Multimeter designed to safely and accurately troubleshoot a variety of automotive and household electrical problems. It's auto-ranging scales eliminate the need to dial in the correct range when making electronic measurements. The 10 MegOhm input is safe for automotive and household uses (i.e., household outlets, fuses, wiring, general-purpose batteries, vehicle battery and charging system, automotive circuits and more). The color-coded LEDs allow you to quickly check household batteries (green = good, yellow = weak and red = replace). Includes attachable test leads, holders and stand for hands free use and features protective rubber corner guards for drop protection. The INNOVA 3320 has a single setting resistance function for AC and DC voltage.

Product Details

  • Amazon Sales Rank: #26 in Automotive
  • Brand: Innova
  • Model: 3320
  • Number of items: 1
  • Dimensions: 5.00" h x 10.00" w x 2.00" l, .73 pounds

Features

  • UL certified product designed to safely and accurately troubleshoot a variety of automotive and household electrical problems
  • Auto-ranging scales eliminate the need to dial in the correct range when making electronic measurements
  • Features large digital display and color coded LED's for battery quick check
  • Single-setting resistance function for AC and DC voltage
  • Protective rubber corner guards for drop protection

Customer Reviews

Most helpful customer reviews
84 of 84 people found the following review helpful.
5I completly Love this Meter!!
By Networker
This little meter is outstanding! I own a Fluke DMM 179 and of course that meter is top of the line. But would you believe this Equus 3320 is 99% spot on with it's readings when compared to a recently calibrated Fluke 179!! I compared measurements with the Equus 3320 and the Fluke 179, in AC Voltage, DC Voltage, Resistance, and DC voltage for the Equus in the Battery test modes. It had literally almost identical readings to the Fluke! The circuit board appears to use mostly prime spec electrical components, so I suspect it will remain accurate for a long time as long as it's not abused.

This meter sells on Amazon for less than $20, and has auto ranging. This means instead of having to dial in the max value manually the meter figures out what DCV range to use (if you were measuring DC voltage for example). It's the same deal for other measurements like resistance, AC Voltage, etc, just set to that measurement type and the meter figures out the correct max range. Most auto ranging meters below $99 have slow auto ranging acquisition speed (this is the time it takes for the meter to figure out what range to use). Many of the cheaper auto ranging meters take several seconds to figure out the correct range and then display the measurement. Not the $19 Equus 3320, it was just as fast as the Fluke 179, which is a second or less in the voltage measurements, and under 2 seconds for resistance (resistance auto ranging takes slightly longer on all meters because the meter must send a small amount of current across the device under test first before trying to acquire the range).

The battery test function (which my Fluke 179 does not have) is the main reason I purchased this meter. The battery test goes beyond just measuring the voltage of the battery any cheap meter can do that all day long. The battery test function in the 3320 puts the battery under a current load (10 Milli amps for both 1.5v and 9v batteries) and then measures the voltage. This gives you a much better idea of if the battery is really good or not and will really perform in your devices. Some batteries on a bare voltage test show good voltage, but that good voltage will quickly drop to unusable levels once the battery is put under load. So testing batteries with a meter that has a battery test function is far superior to just checking it's voltage. This feature alone makes the $19 price for this meter well worth it!

As a few other reviewers have said, it can only measure 200 Milli Amps of current in AC (whereas DC can measure up to 10 Amps). Most other multimeters can measure 10 amps of DC or AC current. So if you are looking to measure any substantial AC current this is the wrong meter. In fact for any current measurements I recommend a current clamp like the ExTech 623 or ExTech 380942 since you can clamp right over a live insulated wire (while the circuit is operating) and take your measurement. With any standard multimeter (like the 3320) you have to wire it in line with the circuit first (with the circuit powered off) and then you can take your measurement. But if you are looking for a compact, accurate multimeter for your garage or home (where you will not need AC current measurements) then look no further you cannot beat the accuracy, auto ranging speed, and the price of the Equus 3320.
250 of 276 people found the following review helpful.
4Good meter but...
By S. Harris
This is a meter of above average quality for the price. A great meter to have for the do it your-selfer for around the house, car or boat. However, one function that is lacking is high range AC current (amps) the description says it measures AC current but doesn't say that the max AC amps it can test is 200mA or .2 amps, not really practical for ANY AC current measurments. You can measure the current of say a 20 watt AC light bulb with this meter. The PC you are using to read this draws about 3.5-4 AMPS or about 3500-4000 milli amps, this meter maxes out at 200 ma.

I bought it for AC amps but can't use it for that. I'll keep it as a back up meter but I have to buy a better meter for AC amps. I guess that's what I get for being a cheap skate... time to buy a Fluke!
114 of 125 people found the following review helpful.
5Good Meter
By Keel Moose and Squirrel
This is a good little meter.

Thumb uppers: Small overall size, large LCD display, auto-ranging, uses 2 AA batteries, uses standard sized banana plugs so is compatible with several 3rd party or customized probes/connectors.

Thumb downers: probe clips are such weak, soft rubber that they don't grip the probes securely. And it would be nice for a little more $$ to include a case. So instead buy a $3 camera case to solve both deficiencies. Too bad the over-sized instruction booklet isn't the same size as the meter so it can be stored in the same case.
See all 562 customer reviews...

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2pcs nRF24L01+ 2.4GHz Wireless Transceiver Arduino Compatible From Addicore

2pcs nRF24L01+ 2.4GHz Wireless Transceiver Arduino Compatible

2pcs nRF24L01+ 2.4GHz Wireless Transceiver Arduino Compatible
From Addicore

List Price: $14.99
Price: $7.64 & eligible for FREE Shipping on orders over $35. Details

Availability: Usually ships in 24 hours
Fulfilled by Amazon and Sold by Addicore

2 new or used available from $6.97
Average customer review:
(18 customer reviews)

Product Description

The nRF24L01+ is a 2.4GHz ISM band transceiver.
Includes on board support components and a 2.4GHz antenna for easy implementation into designs without additional hardware.
Communication range up to 329 feet (100 meters) in ideal conditions.
A host microcontroller can communicate and configure the nRF24L01+ over a 4-pin Serial Peripheral Interface (SPI). The configuration registers are accessible through the SPI connection. Configurable parameters include frequency channel (125 selectable channels), output power, and data rate (data rates: 250kbps, 1Mbps, and 2Mbps).
The on chip voltage regulator accepts supply voltages from 1.9 to 3.6V. When using the nRF24L01+ with an Arduino be sure to use the 3.3V output pin from the Arduino board to power the nRF24L01+ module.
The module has 5V tolerant inputs which allows for direct connection of SPI pins to the Arduino.
Ultra low power consumption as low as 11.3mA transmitting, 13.5 receiving at 2Mbps, 900nA in power down, and 26uA in standby.
Internal filtering results in high margins of meeting RF regulatory standards. The module's radio uses Gaussian Frequency-Shift Keying (GFSK) modulation as well as fast Automatic Gain Control (AGC).
The module includes an Interrupt Request (IRQ) pin which can be used to wake the host microcontroller, (ex: Arduino), from sleep when the module receives a transmission providing great power conservation in battery devices.

Product Details

  • Brand: Addicore
  • Model: nRF24L01+
  • Dimensions: .50" h x .56" w x 1.13" l,

Features

  • Pins are protected in anti-static foam and modules are in resealable packaging with information card
  • Arduino and Raspberry Pi compatible
  • Several resources available online, such as tutorials, data sheets, and notes
  • Auto-acknowledge and auto-retransmit
  • Applications: wireless peripherals, remote control systems such as RC vehicles and consumer remote electronics, wireless voice transmission such as VoIP, wireless sensor networks, wireless networks, home and commercial automation

Customer Reviews

Most helpful customer reviews
70 of 70 people found the following review helpful.
5Just what I needed!
By indyglassman
I got these yesterday and a few hours later I had two Uno's talking to each other. I tried a few libraries and found that the "RF24" library from maniacbug.github.io/RF24/

This library seemed better than the MIRF library in the quick look that I took at each. My project will use 5 of these to communicate with one central/master unit. Communication will be directional.

I have not yet tested the range on these. I hope to use them about 50 ft from each other (unobstructed). If I experience range issues I'll come back and post an update here. If you're thinking about going wireless and don't require 802.11b/g/n then give this a shot. It is cheap and works well!

Update: 9/10/13
I've had a chance to connect 3 of these and have them send/receive data and it worked reliably. I moved the units all over the house to see if I noted a change and I got the data with out missing a beat. I didn't test if there was a change in data rate but I didn't notice any issues.

Update: 10/2/13
I took a pair of these outside, connected to Arduino's. They were mounted in plastic project boxes and I tested the range. Unobstructed range was 50 feet. After that the signal dropped off and I got no reply. In the house I tested on different floors of the house and went from the basement to the 2nd floor and they were able to communicate with out an issue.
24 of 24 people found the following review helpful.
4Good product
By Yuval
Worked for me on the first time. I established communication between an adafruit trinket, and an arduino clone.

The only thing I don't like about these, is that they are not breadboard friendly... The pins are too close. If you get these, you'll also need M-to-F jumper wires if you plan to use a breadboard.
Then again, they are cheap for the value they give - painless wireless communication, no need to modulate anything...
17 of 18 people found the following review helpful.
5Works great
By Randy L. Moulton
When and downloaded the library for the nRE24L01 and put in a simple program in to the Arduinos
Loaded up some sketches show blow and bingo..I am up and working.
Got the following from here.
http://forum.arduino.cc/index.php?topic=138663.0

RX Sketch
#include
#include "nRF24L01.h"
#include "RF24.h"

int msg[1];
RF24 radio(9,10);
const uint64_t pipe = 0xE8E8F0F0E1LL;
int LED1 = 3;

void setup(void){
Serial.begin(9600);
radio.begin();
radio.openReadingPipe(1,pipe);
radio.startListening();
pinMode(LED1, OUTPUT);

}

void loop(void){
if (radio.available()){
bool done = false;
while (!done){
done = radio.read(msg, 1);
Serial.println(msg[0]);
if (msg[0] == 111){delay(10);
digitalWrite(LED1, HIGH);

}
else {digitalWrite(LED1, LOW);}
delay(10);

}

}
else{Serial.println("No radio available");

}

}

TX sketch
#include
#include "nRF24L01.h"
#include "RF24.h"

int msg[1];
RF24 radio(9,10);
const uint64_t pipe = 0xE8E8F0F0E1LL;
int SW1 = 7;

void setup(void){
Serial.begin(9600);
radio.begin();
radio.openWritingPipe(pipe);

}

void loop(void){
if (digitalRead(SW1) == HIGH) {
msg[0] = 111;
radio.write(msg, 1);

}

}