In this post I will guide you through the jungle of available modules based on the ESP8266. This is not a complete list of available modules but a selection of the ones I could test and review. If you think that I have been missing out on one important module please let me know.Every module here as some advantages and disadvantages, depending on the targeted application. If you are planning to to use a module as Wifi shield for an Arduino you might pick a different type than if you´re planning a standalone node.
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Other aspects are breadboard compatibility, availability of pins, need for external components such as a serial-to-usb adapter as well as size and costs. The following tables summarise this post, if you are too much in a hurry to read the whole article: Comparison of Raw Modules ESP-01 ESP-05 ESP-12 ESP-201 Testboard GPIO Pins 2 - 11 11 11 ADC -1 1 1 Antenna PCB PCB PCB External/PCB PCB USB-To-Serial No No No No No Breadboard friendly Medium Good Bad Good Bad Form factor Small Small Medium Big Very Big Price $3 $3 $3 $3 $6.50 Application Simple Standalone mode or wifi shield for Arduino Wifi Shield Standalone Standalone Prototyping Where to buy? This is probably one of the most popular modules, although it is by far not the most convenient one. With its small form factor (24.75mm x 14.5mm) it fits nicely into any enclosure. Two GPIO pins are led out and can be used to control periphery. With proper wiring and a serial-to-usb adapter you can also easily flash alternatives firmwares on it.
By default it comes with one of the different versions of the AT firmware which allows you to use it in combination with an Arduino. One of the biggest problems of this module is the placement of the pin posts which makes it impossible to plug it directly into a bread board for prototyping: the two rows of posts are so close to each other that you would get a short-cirtcuit. However you can still use this module on a breadboard: either build a bread-board adapter or use female-to-male dupont wires to wire the module to your bread-board. Update: There are now also versions of the ESP-01 available, compared to the ESP8266 ESP-01 module. This module allows you to access many features of the ESP8266: 11 GPIO pins, one analog-to-digital converter (ADC) with a 10 bit resolution. It also lets you easily configure deep-sleep mode which lets you run the module for 3 years on two AA batteries.
With one drawback: it is not breadboard friendly at all. As for the modules previously described here the antenna is a track on the PCB which delivers good results for Wifi sensitivity. But to use it for prototyping you´ll have to build something around the module. You can order these breadboard adapters or build one yourself, like my colleague Andi did: ESP8266 ESP-12 plus self made bread board adapter (thx to Andifor the picture) There is also an almost-ready breadboard adapter available.
Thanks to its good availability and the rich access to the chip pins it is also widely used for aggregated modules, such as the test board I describe later in this post or the first version of the NodeMCU module. If you are planning to use the ESP8266 as a stand alone node the chances are good you will end up with this module in one way or the other. It is currently my preferred module for prototyping since it is breadboard friendly and offers similar access to the chip pins as the ESP-12 does.
I say breadboard friendly with two remarks: the four pins at the head of the module keep you from directly plugging the module into a breadboard. But you can easily bend them to ninety digrees or unsolder them and place them on the upper side of the module. The second note is that the module itself hides many pins of the bread board for direct access and leaves only one row visible on each side of the module. If you need more you will have to extend a 5-pin row by connecting it to annother row on your breadboard.
The board comes with a printed PCB antenna but also with a connector for an external one. This makes this module also a perfect candidate if you need to bridge a longer distance with your Wifi module. You can then easily replace the package wire antenna with a high-gain antenna and improve the sensitivity even farther. There are various test boards available.
Check the links and view the picture below to see what I´m describing here. This test board comes with a battery pack and various preconfigured LEDs and one light dependent resistor connected to the ADC. It integrates an ESP-12 as described earlier in this post and makes all the pins available to your convenience.
It also has a jumper which you can set when flashing a new firmware. The board comes with a voltage regulator that steps down the 4.5 Volt from the battery pack to the 3.3V that the ESP8266 needs. You can easily replace the battery pack with the power lines of a USB connector, as I described. Reality looks currently a bit different: on my Mac I could not flash the module with the built in serial-to-usb adapter even after installing the latest driver available. I then had to fall back to an external serial-to-usb adapter.
Esp Guitars
For me this was not a big issue since I don´t flash new firmwares that often and I was already in possession of an external serial converter. After I had flashed the latest version of the NodeMCU Lua firmware I could use the built-in converter just fine.
The second problem is that the current form factor of the module covers all the pins on a bread board in the area of the module. To use the pins you will have to insert bridges which lead from under the module to a visible part and insert the module again.
And you can only to this for a limited number of pins. At the time of this writing only the first version of the NodeMCU module is available and that is what I´m reporting here. In the next few days (or weeks) the team that created the first module will publish an improved version which will fix the mentioned problems of the first version. I´m looking forward to test the new version as soon as it becomes available. Once these issues have been resolved this module certainly has all it takes to become an interesting all-in-one alternative to an Arduino based internet-of-things node.
UPDATE: don’t order this version anymore, consider the NodeMCU V1.0 instead (see below) ESP8266 NodeMCU module (version 0.9). Compared to the V0.9 variant the V1.0 is more narrow and leaves one row of pins on each side on a standard breadboard which is just perfect for prototyping. Another nice feature is the fact that you don’t even have to press the reset/flash button combination in the Arduino IDE to upload a new version of your code. Somehow the board or the software handle this automagically. And with the latest published version of the Arduino/ESP8266 board configuration you can configure upload speed to 921600 baud with which the upload finishes just within a few seconds. Which module suits you best depends on your application. If the price and small form factor is important for you and you are looking for a stand alone module with just two GPIO pins, the ESP-01 is your candidate.
If you just want cheap Wifi connectivity for your Arduino you might go for the ESP-05. The ESP-12 might be interesting if you have periphery based on SPI or I2C bus or if you just many GPIO pins and you are not afraid of a bit of soldering. The ESP-201 is good for solder-free prototyping on a bread board and allows you to access almost all pins of the ESP8266 chip. But you´ll still need an external serial-to-usb converter and a power supply.
In case you want it even easier and the slightly higher price is not a problem I would recommend the NodeMCU V1.0 module for you. The following table summarises this post. Raw Modules ESP-01 ESP-05 ESP-12 ESP-201 Testboard GPIO Pins 2 - 11 11 11 ADC -1 1 1 Antenna PCB PCB PCB External/PCB PCB USB-To-Serial No No No No No Breadboard friendly Medium Good Bad Good Bad Form factor Small Small Medium Big Very Big Price $3 $3 $3 $3 $6.50 Application Simple Standalone mode or wifi shield for Arduino Wifi Shield Standalone Standalone Prototyping Where to buy? I have to admit, this is a bit of shameless advertisement;-). But if you came here because you are interested in IoT and you are probably getting started you might profit from a ready-to-go development kit. One of my most successful projects with the ESP8266 is the WeatherStation. It displays current weather information and forecasts it downloads frequently from the web on a beautiful OLED display.
And this is just the starting point. You can use the included libraries to display data from other sources (stock information, sport results, etc) available on the net. And: I sell it as a development kit in my shop.
With shipping available to almost all countries.
Hey everyone! I thought it might be cool to have a thread which features links and info on how to track and date guitar serial numbers for different brands. I think it can be fun to know a little bit more about our instruments and try to dig up some history if possible. As I have never did this myself before, please help me compose a useful resource for everyone to use as a reference when they need to get more details on their guitars based on the serial number.
Disclaimer: listed resources represent what I've found online. The accuracy of data found there is not guaranteed, except for Fender which I've had chance testing with one of my basses. Let's add info for other brands, please do so by posting in this thread: Brand - Link to information about serial numbers Also, it would be cool to hear what you've found about your guitars by tracking the serial number and which of the listed methods for tracking serials are valid. These are good for dating amp potentiometers and speakers.
'Pot codes' help identify and date Gibson guitars and some Fender amps where the serial numbers can fail you.Gibson records were destroyed and/or lost during one period, hence there are some doubled ser #'s. Fender used parts bought as early as 1964 in huge bulk and used them through the mid and late 60s.
And if anyone is interested in an encyclopedia of guitar features by date and model, George Gruhn's book is an absolute necessity. It's not available on line unless you pay for it.
This post has been edited by klasaine: Oct 27 2014, 06:04 PM.
I saw a guitar dying in a thrift shop. I didn't know anything about ESP LTD honestly speaking. I'm from a family that barely drift away from what we already know. Until I pick this dying Viper-10. I was attracted to the 12 fret inlay that says VIPER-10 its my radio 'call sign' Viper and Ten-Ten is my nickname so when I saw VIPER-10 inlayed on the 12th fret i was compelled to pick it up and save it. When i got home i tried to set it as it has few strings. So I gave it a new strings, Pick up height, Brigde, action, Intonation and all of that cometic polishing.
Oh Boy oh boy!!! I plugged it to my Masrshall AVT Tribute amp and screamed like a Kraken. Now I'm looking at ESP LTD in a different way.
Can you please provide me with some more information about this orphan but soon to be a star. Serious sam hd the second encounter multiplayer crack.
ESP guitars rose to prominence in the 1980s on the strengths of flamboyant paint schemes and lead style sonic hardware. The Japanese guitar company made a name for itself on signature guitar models built for some of the most popular musicians of the time period. Identifying model years based on serial numbers for these ESP guitars can be difficult as the company kept few production records. Company Beginnings Electric Sound Products was opened in 1975 by Hisatake Shibuya in Japan. ESP was originally created to build custom replacement parts for existing guitars, and did not begin producing its own models until 1976.
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The guitar company hit the shores of the United States in 1983, setting up shop in New York. ESP introduced its first line of guitars there for the U.S., the 400 series, which had strikingly similar body styles to the Fender Stratocaster and Telecaster models. Signature ESP Guitars Beginning in 1984, ESP built custom guitars for several high-profile musicians, including Vernon Reid, Ronnie Wood and Vinnie Vincent.
This trend continued in 1986 when George Lynch, while on tour in Japan, had a signature ESP guitar built for him. The result would become the ESP Kamikaze.
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The company used Lynch's popularity to release the Kamikaze as its first signature model available in the United States. Hardware from the Kamikaze models would make appearances in the M-1, MI Custom and Horizon Custom models released that same year. Vintage ESP Guitar Identification ESP maintained limited records for its earlier models such as the 400 Series and its Signature guitar production line. In order to effectively date an ESP model built from 1976 to 1988, ESP's technical support staff will need the serial number of the guitar but, more important, pictures of the front and back of the headstock, neck and body.
Contact information for ESP's technical support is available on the company's United States website under the support heading. Remember, serial number alone is not an effective way to date these earlier models.
ESP simply didn't keep good enough records for that. Current ESP Guitar Identification Guitars currently in production and maintained in ESP's catalog are much easier to identify, though serial number alone is still not adequate. ESP's technical support staff will still require pictures of the guitar, along with the serial number to accurately identify the guitar for the customer. The reason for the guitar's serial number being insufficient is the multiple guitar companies for which ESP has built parts over the years. Guitar necks, fret boards and head stocks were built for companies such as Kramer, Dimarzio, Robin Guitars and Schecter, with some parts being used on ESP models as well.
As a result, the serial number alone is an indicator of which factory produced the guitar, and not the year or model. Warnings Only ESP's technical support staff can accurately make the determination of a guitar's year of production. Avoid guitar 'dater websites' that allow users to input a serial number of a model and get back the year and model name of the guitar in question. These sites are primarily used to perpetuate a counterfeiting epidemic that has been ongoing for years in the music instrument industry. The only company or site or personnel that can accurately date any instrument is the manufacturing company itself.
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