BS2-IC from PARALLAX >> Specification: BASIC Stamp 2 Microcontroller. Buy Parallax Inc BS2-IC BASIC Stamp 2 Microcontroller, 20MHz, 2 kB EEPROM, Pin PDIP BS2-IC. Browse our latest microcontrollers offers. Free Next Day. The Parallax BS2-IC BASIC Stamp 2 serves as the brains inside of electronics projects and applications that require a programmable microcontroller.

Author: Kajigis Dazahn
Country: Mexico
Language: English (Spanish)
Genre: Photos
Published (Last): 27 February 2006
Pages: 149
PDF File Size: 16.60 Mb
ePub File Size: 2.3 Mb
ISBN: 286-3-51601-728-1
Downloads: 85799
Price: Free* [*Free Regsitration Required]
Uploader: Jumi

To do that we use the second high-impedance opamp in the IC TL or TL whose first half we’ve already used as an active filter.

Remember the Y2K millennium bug? The displays that feature 4 lines of 20 characters behave as if they consisted of 2 lines of 40 characters. Other Similar Parallax Products: It’s kicrocontroller called a 5×7 font because the bottom row is blank in all standard characters to leave room for an underscore cursor.

On a multi-line LCD character display, the positions of the characters in a given line are always numbered consecutively from left to right. The two sets of forbidden entry points at the “end” of either line and behave exactly like the valid beginning of the next line 64 and 0, respectively.

Ultrasound sensors on SensorWiki: Then, we click “Getting Started” on the left-hand column. The logical state of either line is thus high by default and becomes “0” only when it’s actively pulled to ground by a conducting transistor. microcntroller

BASIC Stamp 2 Microcontroller Module

All vital components processor, clock source, memory, power regulator are provided on the BS2’s tiny PCB; just connect microcontrolle and go! What varies from one LCD to the next are the numbers assigned to the first character of each line.

LCD units without backlighting have connectors with only 14 pins instead of. Plentiful resources including documentation, source code, and customer projects are available online and in print. Such filters are typically third-order or better The first step is to produce a steady analog voltage from a PWM signal on some other pin.


Pololu – Parallax BASIC Stamp 2 Module #BS2-IC

The slave is responsible for issuing an ACK bit after each byte transferred. The DS will therefore fail on the first day of March in, It’s amazing what you can accomplish with this well-proven microcontroller and its simple language.

A master can drive the I2C bus with arbitrarily low speed, so a sluggish microcontroller, like the BS2, can easily be a master of an I2C bus. That circumstance can hardly happen at all on the SCL line, which most slave don’t even have the circuitry to treat it as anything but an input.

However, a few oscillosope screenshots will help illustrates the concepts we have to teach now. The first time you run that software, it asks you if you want to associate the related file types to it. The following BS2 program fragment is meant to visualize on the oscilloscope what time is leftover in the worst case There are legacy serial versions of both units, which we’ll ignore here.

BASIC Stamp – Wikipedia

The HC-SR04 is a 4-pin device. After this, the resulting standalone device deserves an enclosure and a name: A better solution is to connect the bicolor LED between P1 and something whose polarity is opposite to that of P1 when P1 isn’t in the high-impedance state. So, we have a constant voltage at the output of the operational amplifier which will take a very long time to decay If found the influence of the aging register, if any, microvontroller be far less than that in the conditions described above.

Because the optimal “Vee” depends on temperature, it’s somewhat unpredictable and the user should be able to adjust it with a trimmer. This means the clock of the tested LCD unit is a multiple of The rising and falling edges of the trigger signal need not be adjacent.



Since the unit has no power switch, you must disconnect the battery to turn it off. The slave changes the state of the data line SDA in blue, just after each clock pulse. Instead, the beginnings of the two lines are respectively at addresses 0 and Otherwise, the and the board we’re reviewing here are equally suited as starter sets.

It looks as though the chip is significantly more precise than what’s described in the datasheet, but less adjustable A priori, we had four choices for the HDA enable signal: A simple first-order lowpass filter is used for the preliminary demonstration.

An I2C slave device must be able of recognize its own address quickly to respond to micrcoontroller master’s request. At left is the standard 5×8 matrix font for the HD Because of the above considerations, this is now moot. Feedback Comments or questions?

The BS2-IC is widely used in educational, hobby, and industrial applications and is strongly recommended for first-time BASIC Stamp users because of plentiful resources documentation, source code, and customer nicrocontroller that are available online and in print. Otherwise, we’d have to perform an 8-bit transaction in one direction and a 1-bit acknowledgement in the other.

That’s only two bits, but the DS doesn’t have them. The installation puts a “Basic Stamp Editor v2. This type of protocal is beyond the scope of this article.

The first bad day for the DS comes only 59 days after the DS will fail for lack of a “century toggle”.