This pressure sensor from Freescale is a great low-cost sensing solution for precision measurement of barometric pressure and altitude. The MPL3115A2 has a typical 1.5 Pascal resolution, which can resolve altitude at 0.3 meters (compare to the BMP180 which can do 0.17m). It has the same upsides compared to BMP280, such as interrupt outputs for ultra-low power usage, and its also a heck of a lot easier to read altitude with a built in altimeter calculation - no calibration reading and calculating required. As a bonus, there's even a fairly good temperature sensor with ±1°C typical accuracy (±3°C max).
This chip likes to be used with 2-3.6V power and logic voltages, so we placed it on a breakout with a 3V regulator and logic level shifting. Its easy to use with any Arduino or microcontroller that has i2c capability.
V2.0 version added power conversion module and IO port level conversion circuit for the 3.3V MCU and 5V chip
Resolution:< 1 feet /0.3 M
Pressure range: 20 - 110 kPa
Compensation, direct reading (don't need software):
{"id":1644707315784,"title":"MPL3115A2 - Barometric Pressure \/ Altitude \/ Temperature Sensor","handle":"mpl3115a2-barometric-pressure-altitude-temperature-sensor","description":"\u003cp\u003e\u003cspan\u003eThis pressure sensor from Freescale is a great low-cost sensing solution for precision measurement of barometric pressure and altitude. The MPL3115A2 has a typical 1.5 Pascal resolution, which can resolve altitude at 0.3 meters (compare to the BMP180 which can do 0.17m). It has the same upsides compared to BMP280\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e,\u003c\/span\u003e such as interrupt outputs for ultra-low power usage, and its also a heck of a lot easier to read altitude with a built in altimeter calculation - no calibration reading and calculating required. As a bonus, there's even a fairly good temperature sensor with ±1°C typical accuracy (±3°C max).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis chip likes to be used with 2-3.6V power and logic voltages, so we placed it on a breakout with a 3V regulator and logic level shifting. Its easy to use with any Arduino or microcontroller that has i2c capability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eV2.0 version added power conversion module and IO port level conversion circuit for the 3.3V MCU and 5V chip \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution:\u0026lt; 1 feet \/0.3 M \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePressure range: 20 - 110 kPa \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompensation, direct reading (don't need software): \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e20bit pressure measurement (Pascal) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e20bit measurements of height (metres) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e12bit temperature measurement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOnboard intelligence \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSampling rate: maximum 128 Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h5\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/sensors_m0_mpl3115a2_bb_480x480.png?v=1586015896\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/DATASHEET\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC1017\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/LIBRARIES\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC1017\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eLibraries\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/SAMPLE_CODE\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC1017\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSample Code\u003c\/a\u003e\u003c\/div\u003e\n\u003ch5\u003eTutorials \u003c\/h5\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/tyN0M3ISyFY\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e","published_at":"2022-12-06T11:25:43+05:30","created_at":"2019-02-27T06:33:12+05:30","vendor":"ThinkRobotics.in","type":"Sensor","tags":["altimeter","Arduino","Arduino Sensor","Arduino temperature sensor","ELC1","ENVR-SNR","MPL3115A2","Pressure Sensor","Sensor","Temperature"],"price":64999,"price_min":64999,"price_max":64999,"available":false,"price_varies":false,"compare_at_price":89000,"compare_at_price_min":89000,"compare_at_price_max":90000,"compare_at_price_varies":true,"variants":[{"id":27847045185608,"title":"Without Soldered Pin","option1":"Without Soldered Pin","option2":null,"option3":null,"sku":"ELC1017","requires_shipping":true,"taxable":true,"featured_image":{"id":4742157172808,"product_id":1644707315784,"position":2,"created_at":"2019-02-27T06:33:19+05:30","updated_at":"2019-12-31T17:39:04+05:30","alt":"MPL3115A2 - Barometric Pressure","width":1000,"height":831,"src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1nODOXc_vK1RkSmRyq6xwupXaL.jpg?v=1577794144","variant_ids":[27847045185608]},"available":false,"name":"MPL3115A2 - Barometric Pressure \/ Altitude \/ Temperature Sensor - Without Soldered Pin","public_title":"Without Soldered Pin","options":["Without Soldered Pin"],"price":64999,"weight":10,"compare_at_price":90000,"inventory_management":"shopify","barcode":"27847045185608","featured_media":{"alt":"MPL3115A2 - Barometric Pressure","id":854929047624,"position":2,"preview_image":{"aspect_ratio":1.203,"height":831,"width":1000,"src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1nODOXc_vK1RkSmRyq6xwupXaL.jpg?v=1577794144"}},"requires_selling_plan":false,"selling_plan_allocations":[]},{"id":16175752151112,"title":"With Soldered Pin","option1":"With Soldered Pin","option2":null,"option3":null,"sku":"ELC1017S","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"MPL3115A2 - Barometric Pressure \/ Altitude \/ Temperature Sensor - With Soldered Pin","public_title":"With Soldered Pin","options":["With Soldered Pin"],"price":64999,"weight":10,"compare_at_price":89000,"inventory_management":"shopify","barcode":"16175752151112","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1KPYNXiLxK1Rjy0Ffq6zYdVXac.jpg?v=1577794144","\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1nODOXc_vK1RkSmRyq6xwupXaL.jpg?v=1577794144"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1KPYNXiLxK1Rjy0Ffq6zYdVXac.jpg?v=1577794144","options":["Soldered"],"media":[{"alt":"MPL3115A2 - Barometric Pressure","id":854928982088,"position":1,"preview_image":{"aspect_ratio":1.195,"height":836,"width":999,"src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1KPYNXiLxK1Rjy0Ffq6zYdVXac.jpg?v=1577794144"},"aspect_ratio":1.195,"height":836,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1KPYNXiLxK1Rjy0Ffq6zYdVXac.jpg?v=1577794144","width":999},{"alt":"MPL3115A2 - Barometric Pressure","id":854929047624,"position":2,"preview_image":{"aspect_ratio":1.203,"height":831,"width":1000,"src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1nODOXc_vK1RkSmRyq6xwupXaL.jpg?v=1577794144"},"aspect_ratio":1.203,"height":831,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/HTB1nODOXc_vK1RkSmRyq6xwupXaL.jpg?v=1577794144","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cspan\u003eThis pressure sensor from Freescale is a great low-cost sensing solution for precision measurement of barometric pressure and altitude. The MPL3115A2 has a typical 1.5 Pascal resolution, which can resolve altitude at 0.3 meters (compare to the BMP180 which can do 0.17m). It has the same upsides compared to BMP280\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e,\u003c\/span\u003e such as interrupt outputs for ultra-low power usage, and its also a heck of a lot easier to read altitude with a built in altimeter calculation - no calibration reading and calculating required. As a bonus, there's even a fairly good temperature sensor with ±1°C typical accuracy (±3°C max).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis chip likes to be used with 2-3.6V power and logic voltages, so we placed it on a breakout with a 3V regulator and logic level shifting. Its easy to use with any Arduino or microcontroller that has i2c capability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eV2.0 version added power conversion module and IO port level conversion circuit for the 3.3V MCU and 5V chip \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution:\u0026lt; 1 feet \/0.3 M \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePressure range: 20 - 110 kPa \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompensation, direct reading (don't need software): \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e20bit pressure measurement (Pascal) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e20bit measurements of height (metres) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e12bit temperature measurement \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOnboard intelligence \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSampling rate: maximum 128 Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h5\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/sensors_m0_mpl3115a2_bb_480x480.png?v=1586015896\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/DATASHEET\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC1017\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/LIBRARIES\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC1017\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eLibraries\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/SAMPLE_CODE\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC1017\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSample Code\u003c\/a\u003e\u003c\/div\u003e\n\u003ch5\u003eTutorials \u003c\/h5\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/tyN0M3ISyFY\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e"}
