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ESP8266-Config/README.md at master · AppStackTH/ESP8266-Config. Compiling Your Own Programs For The ESP8266. When the ESP8266 was first announced to the world, we were shocked that someone was able to make a cheap, accessible UART to WiFi bridge.

Compiling Your Own Programs For The ESP8266

Until we get some spectrum opened up and better hardware, this is the part you need to build an Internet of Things thing. It didn’t stop there, though. Some extremely clever people figured out the ESP8266 had a reasonably high-power microcontroller on board, a lot of Flash, and a good amount of RAM. It looked like you could just use the ESP8266 as a controller unto itself; with this chip, all you need to do is write some code for the ESP, and you have a complete solution for your Internet connected blinking lights or WiFi enabled toaster. Whatever the hip things the cool kids are doing these days, I guess. But how do you set up your toolchain for the ESP8266? The tutorial covers setting up the Xtensa toolchain and a patched version of GCC, GDB, and binutils. Getting started with the esp8266 and Arduino.

The esp8266 is a relatively new wifi module that plays well with any microcontroller.

Getting started with the esp8266 and Arduino

Until recently, the CC3000-based modules had dominated, but at $35/each, they just haven't been a viable option for a lot of use cases. In this post, I'll show you the easiest way to get started with the esp8266 and I'll show you how to update firmware as you go. The esp8266 comes in many form-factors, but the 01 is the most common and is available from $5-15 each, and it's the variant I'll be using here. Before getting started, please note that this module expects 3.3v.

Wiicom - easy way to wi-fi – Products Archive. Electronics. Arduino Maker Projects. Can you move over? The 74HC595 8 bit shift register. OK, so say you have this crazy cool idea where you need to control a ton of LEDs (I know, I know… LEDs).

Can you move over? The 74HC595 8 bit shift register

You looked at the multiplexer article, and that was great, but this idea is so cool, you need individual control of each LED, and turning them on one at a time just won’t do. Well again, we are here to help, and now it’s time to introduce you to the Shift Register. Not just any shift register, the super cheap, incredibly awesome 74HC595 8-bit Shift Register! What does a Shift Register do? Basically a shift register will, in the end, let you expand on the digital outputs you have on your mictrocontroller.

Arduino Multiplexer Shield, 48 I/O from 7 Pins. If you need a lot of inputs and/or outputs, this is your solution!

Arduino Multiplexer Shield, 48 I/O from 7 Pins

The Mux (Multiplexer) Shield II adds the capacity for up to 48 inputs or outputs on an Arduino. Using three Texas Instruments CD74HC4067 Analog Multiplexers and six SN74HC595 Shift Registers, the Mux Shield II makes it possible to have 48 analog/digital inputs or digital outputs in many combinations, easily handled by the provided Arduino library. Muxing Around With The CD74HC4067. Have you ever found yourself running out of pins to read an array of analog sensors?

Muxing Around With The CD74HC4067

Don’t worry, you’re not alone, it happens to the best of us, and there is something you can do about it. An analog / digitalmultiplexer like the CD74HC4067 (mux for short) can help multiply the amount of pins you have, and it is insanely easy to connect to your arduino or other microcontroller The CD74HC4067 is a 16-Channel Analog Multiplexer/Demultiplexer. Esp8266. Field Monitoring Project. Arduino. uControllers. Arduino Mux Shield E000008. XRF documents. Banners Top Search.

XRF documents

Geeetech CD74HC4067 Analog Digital MUX Breakout Board Arduino Compatible. Place bid Review and confirm your bid Bid confirmation.

Geeetech CD74HC4067 Analog Digital MUX Breakout Board Arduino Compatible

Changing nrf24l01 channel · Issue #2 · kehribar/nrf24L01_plus. Microsoft Word - nRF24L01 Tutorial 0.doc - nrf24l01_tutorial_0.pdf. NRF24L01 2 4G Wireless Serial Module STC15L204 Wireless Development Board. RTL 2832u-R820T SDR as a Spectrum Analyser ? RTL 2832u-R820T SDR as a Spectrum Analyser ? SDR-14 Information. ACS712 Current Sensor- 30A [SEL71230A] - $3.98 : Elecrow bazaar, Make your making more easy. Solar Powered Circuit Waters Your Plants. If you want your plants to stay healthy, you need to make sure they stay watered.

Solar Powered Circuit Waters Your Plants

[Dimbit] decided to build his own solar powered circuit to help automatically keep his plants healthy. Like many things, there is more than one way to skin this cat. [Dimbit] had seen other similar projects before, but he wanted to make his smarter than the average watering project. He also wanted it to use very little energy. [Dimbit] first tackled the power supply. Next [Dimbit] needed an electronically controllable water valve. ACS712 - dakumas. Holo daviklis Skaičiavimo metodikos šaltiniai: For my microcontroller projects I used ACS712 – the model that has Optimized Accuracy Range is 5 A and Sensitivity is 185 mV/A.

ACS712 - dakumas

Accurately Measuring Electrical Conductivity. [Ryan] designed a PCB that lets you easily take readings from a commercial electrical conductivity probe over I2C.

Accurately Measuring Electrical Conductivity

Conductivity measurements are great for measuring the salinity of a solution, which is useful for applications like hydroponics. While the probes themselves are a bit pricey (on the order of $50 from eBay), they are very accurate and last a long time. Commercial conductivity probes contain platinum electrodes to prevent corrosion. The electrodes are excited with an AC signal, which prevents polarization of the solution and avoids chemical reactions at the electrodes. The voltage across the two electrodes is measured while the electrodes are being excited, which is proportional to the conductivity of the solution. RFToy Makes Wireless Projects Easier. [Ray] has created RFToy, a simple gadget to aid in setting up wireless systems with a variety of common radio modules. RFToy is an open source microcontroller board running on an ATmega328. While RFToy is Arduino code compatible, [Ray] chose to ditch the familiar Arduino shield layout for one that makes it easier to install RF modules, and is more handheld friendly.

[RFToy] includes headers for the popular nRF24L01 2.4 GHz transceiver, as well as 433/315 transmitters and receivers found in many low-cost wireless electronic devices. The 128×64 pixel OLED screen and 3 button interface make it easy to set up simple user interfaces for testing new designs. Low Current Sensor Breakout - ACS712 - SEN-08883. Description: This current sensor gives precise current measurement for both AC and DC signals. These are good sensors for metering and measuring overall power consumption of systems.

The ACS712 current sensor measures up to 5A of DC or AC current. We added an opamp gain stage for more sensitive current measurements. By adjusting the gain (from 4.27 to 47) you can measure very small currents. The ACS712 Low Current Sensor Breakout outputs an analog voltage that varies linearly with sensed current. ACS712 Current Sensor Read. The ACS712 sensor read the current value and convert it into a relevant voltage value, The value that links the two measurements is sensitivity (you can find it on the datasheet) which – for 5A model – has a typical value of 185mV/A. The sensor can measure positive and negative currents (range -5A…5A), and power supply is 5V for the sensor, and the middle sensing voltage is 2.5V when no current.

We are offering 5A and 20A version in our store. Direct Sampling Mode. The rtl-sdr software defined radio can be told to run in a mode called “direct sampling mode”, which with a small hardware mod allows the dongle to tune to the HF frequencies where ham radio and many other interesting signals are found. This means that no upconverter circuit is required.

However, the difficulty with direct sampling is that a hardware modification to the dongle is required. Also, the performance can not be expected to be as good as an upconverter. The direct sampling mode was originally discovered and discussed in this Google groups thread. Examples YouTube user Superphish was able to receive HF AM broadcast radio, and a decode a HF weather fax signal at 5.8MHz using the direct sampling mod. RTL SDR FT-857 panadapter with HDSDR. RTL 2832u-R820T SDR as a Spectrum Analyser ? RTL SDR As A Spectrum Analyzer. RTL-SDR, the USB TV tuner turned software-defined radio is an amazing device, capable of listening to nearly anything from 25MHz to 1750MHz, fits in your pocket, and costs about $20. nRF24L01. Super Probe. 100led, www.100led.com. Photo-detector Barcode Scanner.

ByTony Huang, th257Nathaniel Smith, nrs27. Automatic Lead Acid Battery Charger Circuit Using IC 555. The following article explains a simple, versatile automatic lead acid battery charger circuit. Home_auto. Open Hardware. Current - Current.pdf. How to measure dc current with a microcontroller? A new multi-function power supply unit for my Embedded Lab. A development and user interface tool for your embedded projects. Opengeiger.de. How to access serial and parallel ports by using Visual Basic .NET. This step-by-step article describes how to access serial ports and how to access parallel ports by using Microsoft Visual Basic .NET.

The Internet of Things Chip Gets a New Spectrum. Last year we learned about Weightless, an Internet of Things chip that solves all the problems of current wireless solutions. It’s low power and has a 10-year battery life (one AA cell), the hardware should cost around $2 per module, and the range of the Weightless devices range from 5+km in urban environments to 20-30km in rural environments. Analog input reading using 741 op amp with pic. When i connect the output of this circuit to pic it only take on analog output terminal the other terminal i.e the grounded terminal is connected to pic ground ?!! Or somewhere else Yes, the ground is pic ground which should also be supply ground. about the potentiometer meter could u please give me full schematic including it ?

This would be an ordinary volume control as commonly found in audio equipment. Hacklet 19 – Ham Radio. Amateur, or ham radio operators have always been hackers. For much of the early 1900’s, buying a radio was expensive or impossible. Hams would build their own rigs, learning electronics and radio theory along the way. Time moves on, but hams keep hacking. AVR CDC. Indie. Dinheiro_rapido. Virtual wire Attiny. Projetos. Basic eletronics.

nRF24L01. Inertial Measurement Unit. Why CDC Serial Device installation fails on Windows Vista and 7 ? DuinoMite/mchpcdc.inf at master · OLIMEX/DuinoMite. PIC18F4550 Microcontroller Datasheet & PinOut. J. Mike Rollins: 18F_hardware. Flowchart. Serial Port Data Logging.

Controllers

ARDUINO. Serial Adapter RS232/TTL 3-5,5V. RS232 to TTL-5V Converter Mini Board. GPIO. Voltage. RS485 to 8 Digitally Outputs controller, BUS ID:01. DC Opto-Isolated Input Board. Tv RCA PIC. Multiplexing. Multiplexer Breakout. Analogue/Digital Multiplexer Breakout Board. Analogue/Digital Multiplexer Breakout Board. Analog/Digital MUX Breakout - BOB-09056.

32 channel multiplexer. Shopping.kitsnspares.com. Mux Shield II - DEV-11723. Critical Velocity - MonsterMux 32 Channel Analog Multiplexer Shield Kit for Arduino P/N: MMUX32. Signal-to-noise ratio - MATLAB snr. PCB. Vertical Etching Tank for DIY PCB etching. ESP8266 Distance Testing.