This page (revision-14) was last changed on 2020-01-20 09:52 by Murray Altheim

This page was created on 2020-01-19 21:55 by Murray Altheim

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Page References

Incoming links Outgoing links
Ads 1015 Analog Digital Converter
Ads1015AnalogDigitalConverter

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At line 1 changed one line
[{Image src='attach/Ads1015AnalogDigitalConverter/ads1015-chip.jpg' caption='ADS1015 Integrated Circuit (enlarged 20x; actual size: 2 x 1.5mm)' align='left' class='imgFloatLeft'}]
[{Image src='attach/Ads1015AnalogDigitalConverter/ads1015-thumb.jpg' link='attach/Ads1015AnalogDigitalConverter/ads1015.jpg' caption='ADS1015 Analog-Digital Converters (click to enlarge)' align='right' class='imgFloatRight'}]
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The Texas Instruments __ADS1015 +/-24V Analog Digital Converter__ is a 2 x 1.5mm integrated circuit implemented by both AdaFruit and Pimoroni as [I2C]-compatible breakout boards (Pimoroni's is a "Breakout Garden" board). It can be used to measure analog voltage sources between -24V DC to +24V DC at sampling rates up to 3.3kHz, returning a value with 12 bit precision.
The ADS1015 is a Texas Instruments +/-24V Analog Digital Converter implemented by both AdaFruit and Pimoroni (the latter as a Breakout Garden board), both [I2C] compatible boards. It can be used to measure an analog voltage between -24V DC to +24V DC, returning a value with 12 bit precision.
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The ADS1015 has four channels (labeled {{{A0}}}, {{{A1}}}, {{{A2}}} and {{{A3}}}). The Pimoroni board only provides three of these channels as usable pins.
The ADS1015 has four channels (labeled {{{A0}}}, {{{A1}}}, {{{A2}}} and {{{A3}}}) that can read voltages from -24V to +24V at sampling rates up to 3.3KHz with a 12-bit resolution. The Pimoroni board only provides three of these channels as usable pins.
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[{Image src='attach/Ads1015AnalogDigitalConverter/ads1015-thumb.jpg' link='attach/Ads1015AnalogDigitalConverter/ads1015.jpg' caption='ADS1015 Breakout Boards (click to enlarge)' align='right' class='imgFloatRight'}]
The thumbnail image to the right is roughly the size of the boards, which measures 24 x 21mm. As of January 2020
the price of the AdaFruit board is US$9 (~NZ$14), the price of the Pimoroni board is £12 (~NZ$24).
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The thumbnail image to the right is roughly the size of the Adafruit and Pimoroni boards, which measure 28 x 17mm and 24 x 21mm respectively.
As of January 2020 the price of the AdaFruit board is US$9 (~NZ$14), also available from DigiKey NZ at NZ$16.57 (where shipping is free if you order over NZ$66). The price of the Pimoroni board is £12 (~NZ$24).
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* 12-bit precision (Adafruit also sell a 16-bit version, see [ADS1115|https://www.adafruit.com/product/1085])
* 12-bit precision
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* the TI ADS1015 has four channels: AdaFruit's provides all four, whereas Pimoroni's board only provides connections to three of them
* three or four channels (the TI ADS1015 has four: AdaFruit's provides all four, whereas Pimoroni's board only provides connections to three of them)
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* [I2C] interface: the Pimoroni board uses address 0x48 or 0x49 with a cut trace; the Adafruit board can be programmed for up to 4 different addresses)
* [I2C] interface (address 0x48/0x49 (cut trace))
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* compatible with all models of Raspberry Pi, and Arduino
* [ads1015-python library | https://github.com/pimoroni/ads1015-python] on github
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Both boards are compatible with all models of Raspberry Pi and Arduino, depending on which software libraries
you intend to use.
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The Adafruit board has its own installation page (which we won't repeat here, see ''[References|https://service.robots.org.nz/wiki/Edit.jsp?page=Ads1015AnalogDigitalConverter#section-Ads1015AnalogDigitalConverter-References]'' below).
You'll need [Python] and {{{pip}}} (or {{{pip3}}} for Python 3) already installed.
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For the Pimoroni board, [Python] and {{{pip}}} (or {{{pip3}}} for Python 3) must be installed.
Then, if you're using Python 2, just run:
If you're using Python 2, just run:
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or for Python 3:
For Python 3, use:
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** [Adafruit 4-Channel ADC Breakouts: A guide to the ADS1115 and ADS1015 analog converters|https://learn.adafruit.com/adafruit-4-channel-adc-breakouts/]
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** [ads1015-python library | https://github.com/pimoroni/ads1015-python] on github
* [Adafruit ADS1015|https://www.digikey.co.nz/catalog/en/partgroup/ads1015-12-bit-adc-4-channel-with-programmable-gain-amplifier/49471] product page on DigiKey
This page (revision-14) was last changed on 2020-01-20 09:52 by Murray AltheimTop