Team 207

The repository for Team 207 of EGR314 for Spring 2024.

View project on GitHub

Component Selection

Power Supply

Battery

Table 1a: Battery Component Selection 1

Solution Pros Cons

Name: EN22
Price: $2.61
Link: https://www.digikey.com/en/products/
detail/energizer-battery-company/EN22/704825
  • Common brand(?)
  • In heavy stock
  • Good shelf life
  • Not used before

    • Table 1b: Battery Component Selection 2

    Solution Pros Cons

    Name: 6LF22XWA/B
    Price: $2.34
    Link: https://www.digikey.com/en/products/
    detail/panasonic-bsg/6LF22XWA-B/5067196
  • Used before in EGR304
  • Can be put into series
  • Fairly cheap
  • In stock
  • Had a few issues using it previously
  • May not be enough/be too much voltage
  • Not a great datasheet
  • Not rechargeable

    • Table 1c: Battery Component Selection 3

    Solution Pros Cons

    Name: A23BPZ
    Price: $2.26
    Link: https://www.digikey.com/en/products/
    detail/energizer-battery-company/A23BPZ/5431480
  • Has a discharge rate (500uA)
  • In depth datasheet
  • 12 V vs 9, won’t need to make a battery pack in series potentially if we only need 12 volt
  • Probably isn’t efficient
  • Not used this kind of battery in a system like this before

    • Table 1d: Battery Component Selection 4

    Solution Pros Cons

    Name: Amazon Basics 2-Pack 9 Volt Lithium High-Performance Batteries, 10-Year Shelf Life, Long Lasting Power
    Price: $16.38
    Link: https://www.amazon.com/AmazonBasics-Volt-Lithium-Batteries-8-Pack/dp/B082DMR8DJ
  • Great reviews
  • Lithium
  • High shelf life
  • Have to buy from Amazon
  • Unsure of capacity, but it should be enough according to similar products

    • Choice: Amazon Basics 2-Pack 9 Volt Lithium High-Performance Batteries, 10-Year Shelf Life, Long Lasting Power

    Rationale: We chose this because even though we’re unsure of the capacity, based on its competition and its cheap price, on top of being a lithium battery, we’re taking the risk that this can provide enough power to sustain our project as long as it needs to.

    Switching Voltage Regulator

    Table 2a: Voltage Regulator Component Selection 1

    Solution Pros Cons

    Name: LM2575D2T-3.3R4G
    Price: $2.39/ea
    Link: https://www.digikey.com/en/products/
    detail/onsemi/LM2575D2T-3-3R4G/1476688
  • Used in class (Through hole)
  • Relatively cheap
  • Good max input V
  • In stock
  • Surface mount not used in class
  • Might be hard to apply

    • Table 2b: Voltage Regulator Component Selection 2

    Solution Pros Cons

    Name: TLVM13620RDHR
    Price: $4.42/ea
    Link: https://www.digikey.com/en/products/
    detail/texas-instruments/TLVM13620RDHR/16585658
  • Newer than other regulators
  • Has a lot of different options
  • Higher current
  • Unused to the actual component itself (never had experience with this kind of surface mount)
  • Somewhat confusing as to how to regulate to 3.3 V

    • Table 2c: Voltage Regulator Component Selection 3

    Solution Pros Cons

    Name: TPS560430X3FDBVR
    Price: $1.07/ea
    Link: https://www.digikey.com/en/products/
    detail/texas-instruments/TPS560430X3FDBVR/9094603
  • Less current running through the regulator, may be good?
  • Lots of stock
  • Seems fairly small
  • Not used in class

    • Choice: LM2575D2T-3.3R4G

    Rationale: The class used the through-hole version of this component for a prior ICC, so it would be beneficial to be able to use that knowledge going forward as much as possible. Although it wasn’t the surface mount version, it stands to reason the same circuit should theoretically work.

    Motor Subsystem Components

    Motor Driver

    Table 3a: Motor Driver Component Selection 1

    Solution Pros Cons

    Name: IFX9201SGAUMA1
    Price: $4.00000
    Link: https://www.digikey.com/en/products/
    detail/infineon-technologies/IFX9201SGAUMA1/5415542
  • Will gain experience using this motor driver in class
  • The teaching team has more experience with this motor driver
  • Cheaper alternative
  • Only utilizes SPI communication
  • More expensive than other motor drivers

    • Table 3b: Motor Driver Component Selection 2

    Solution Pros Cons

    Name: IRMCF311TY
    Price: $4.82000
    Link: https://www.digikey.com/en/products/
    detail/rochester-electronics-llc/IRMCF311TY/12597383
  • Less Expensive
  • Has more pins to solder will be a bit difficult
  • Less Experience with the IC

    • Table 3c: Motor Driver Component Selection 3

    Solution Pros Cons

    Name: IRMCF312TR
    Price: $8.88000
    Link: https://www.digikey.com/en/products/
    detail/infineon-technologies/IRMCF312TR/1982944
  • Has a variety of interfaces for customizable settings
  • Less Experience with the IC
  • Will be more difficult to solder

    • Choice: IFX9201SGAUMA1

    Rationale: This motor driver was provided for us in class and would provide less of a learning curve, in terms of operation and coding itself. The IC itself would take less time to solder because there are less pins on the layout.

    Motor

    Table 4a: Motor Component Selection 1

    Solution Pros Cons

    Name: 95010
    Price: $1.79000
    Link: https://www.digikey.com/en/products/detail/
    kitronik-ltd/2546/8635440
  • Small compact size for versatility
  • Within the range operating voltage
  • The shaft offers a variety for different pieces to be added.
  • The RPM does exceed the desired output by a small margin

    • Table 4b: Motor Component Selection 2

    Solution Pros Cons

    Name: 80047
    Price: Out of Stock
    Link: https://www.digikey.com/en/products/
    detail/makeblock-co-ltd/80047/9917308
  • Highest value of torque which would be useful for our specific application
  • Optimal Power consumption for battery
  • The Availability of the unit itself
  • The data sheet is not the most reliable

    • Table 4c: Motor Component Selection 3

    Solution Pros Cons

    Name: 114090046
    Price:$5.20000
    Link: https://protosupplies.com/product/
    dc-geared-motor-and-wheel-kit-3-9v-77rpm/
  • Less expensive model
  • Smaller and compact for versatility
  • Correct operating voltage
  • Data sheet is not too detailed
  • Less torque

    • Choice: 114090046

    Rationale: This motor provided all the optimal specs for our specific application and was reasonably priced compared to all the other motors that were available. The compact shape also would help with mechanical design of the project. This Motor also offers a higher torque value compared to all the other DC motors and is great for pulling heavy loads, which is required for our application.

    Humidity System Components

    Humidity

    Table 5a: Humidity Sensor Component Selection 1

    Solution Pros Cons

    Name: Honeywell Sensing and Productivity Solutions HIH6030-021-001
    Price: $13.43
    Link: https://www.digikey.com/en/products/detail/
    honeywell-sensing-and-productivity-solutions/HIH6030-021-001/4291625
  • Hybrid SPI and I2C communication types
  • Good accuracy
  • Outward surface mount pins
  • Low power consumption
  • Easy application circuit
  • Somewhat Small Size
  • High Price Point

    • Table 5b: Humidity Sensor Component Selection 2

    Solution Pros Cons

    Name: STMicroelectronics HTS221TR
    Price: $5.36
    Link: https://www.digikey.com/en/products/
    detail/stmicroelectronics/HTS221TR/5180551
  • Low Noise and High Resolution
  • Hybrid SPI and I2C
  • Small size
  • Strange pin layout

    • Table 5c: Humidity Sensor Component Selection 3

    Solution Pros Cons

    Name: Bosch Sensortec BME280
    Price: $6.42
    Link: https://www.digikey.com/en/products/
    detail/bosch-sensortec/BME280/6136306
  • Hybrid IC and SPI
  • 3 in 1 pressure, temp and humid sensor
  • Fast response time
  • Good price
  • Low power consumption
  • Small size

    • Temperature System Components

    Temperature Sensor

    Table 6a: Temperature Sensor Component Selection 1

    Solution Pros Cons

    Name: MCP9700T-E/TT
    Price: $0.30
    Link: https://www.digikey.com/en/products/detail/microchip-technology/MCP9700T-E-TT/1212510
  • This device can connect to both I2C and SPI outputs.
  • You can surface mount it.
  • This device has a wide temperature measurement range of -40 celsius to 125 celsius at an extended temperature and -40 celsius to 150 celsius at the high temperature.
  • This device is optimized to drive a large amount of capacitive loads.
  • It’s too small.
  • It has a low operating current at 6 meu.

    • Table 6b: Temperature Sensor Component Selection 2

    Solution Pros Cons

    Name: NCT75MNR2G
    Price: $0.83
    Link: https://www.digikey.com/en/products/
    detail/onsemi/NCT75MNR2G/2748391
  • This device can connect to both I2C and SPI outputs.
  • You can surface mount it.
  • This device has a wide temperature measurement range of -55 celsius to 125 celsius.
  • It has a “shutdown mode” when it has a low power consumption.
  • This device has an “over temperature indicator”.
  • It’s too small.
  • It is a “one-shot” mode.
  • This device has a small input voltage of 3.0 V to 5.5 V.

    • Table 6c: Temperature Sensor Component Selection 3

    Solution Pros Cons

    Name: LMT84DCKR
    Price: $0.80
    Link: https://www.digikey.com/en/products/detail/
    texas-instruments/LMT84DCKR/4090899
  • This device can connect to both I2C and SPI outputs.
  • The outputs are short-circuited protected.
  • You can surface mount it.
  • The temperature is very accurate at a +/- of 0.4 celsius typical.
  • It has a wide temperature range of -50 celsius to 150 celsius
  • It’s too small.
  • It has a low voltage operation at 1.5.
  • It has a low quiescent current at 5.4 meu.

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