The BatTrainer

Working on yourself requires constant feedback. I built a setup which measures the dynamics of the bat and gives you feedback on your swing.

Mar 9, 2022

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Components and supplies

1

Pololu Mini Pushbutton Power Switch with Reverse Voltage Protection, LV

1

Arduino Oplà IoT Kit

1

LiPo-Charger DEBO1 3.7LI 1.0A

1

LiPo-Battery APPLE 616-0278

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USB-A to Micro-USB Cable

2

HC-05 Bluetooth Module

1

Baseball Bat

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Powerbank 10000 mAh PB320PD

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Arduino Nano 33 BLE

Tools and machines

1

Tape, Clear

1

10 Pc. Jumper Wire Kit, 5 cm Long

1

Soldering iron (generic)

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Solder Wire, Lead Free

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Hot glue gun (generic)

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Wire Stripper & Cutter, 18-10 AWG / 0.75-4mm² Capacity Wires

Apps and platforms

1

Arduino IoT Cloud

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Arduino IDE

Project description

Code

Downloadable files

BatSensor

Schematic of the BatSensor. Due to missing parts in the database, I used a generic Adafruit Pushbutton and the Powerboost 500 as LiPo Charger. The working principle remains the same. The Charger is used to supply the Nano 33 BLE with power and to charge the battery, the push-button circuit cuts the connection to save some energy. The Bluetooth module is connected to the Serial1 Pin, since the HC-05 and the Nano operate at 3,3 V no Voltage dividers should be required.

BatSensor

BatStation

Just the MKR Wifi 1010 and the HC-05 Module, but you cant screw up the header connection to the carrier board

BatStation

BatStation

Just the MKR Wifi 1010 and the HC-05 Module, but you cant screw up the header connection to the carrier board

BatStation

BatSensor

Schematic of the BatSensor. Due to missing parts in the database, I used a generic Adafruit Pushbutton and the Powerboost 500 as LiPo Charger. The working principle remains the same. The Charger is used to supply the Nano 33 BLE with power and to charge the battery, the push-button circuit cuts the connection to save some energy. The Bluetooth module is connected to the Serial1 Pin, since the HC-05 and the Nano operate at 3,3 V no Voltage dividers should be required.

BatSensor

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s3k453

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