How to Use Adafruit PowerBoost 1000C: Examples, Pinouts, and Specs

The Adafruit PowerBoost 1000C is a versatile power supply module designed for portable electronics. It can drive your projects with a single lithium polymer (LiPo) or lithium-ion (LiIon) rechargeable battery, providing a stable 5V output. The PowerBoost 1000C is equipped with a built-in battery charging circuit that supports USB charging with automatic switching between charging and operation modes. This makes it ideal for battery-powered projects such as wearable electronics, portable instruments, USB chargers, and any USB-powered gadget.

• Portable USB chargers
• Wearable electronics
• Battery-powered Raspberry Pi or Arduino projects
• DIY smartphones or gaming devices
• Mobile robotics

• Input Voltage (VIN): 3.7V nominal (LiPo/LiIon battery voltage)
• Output Voltage (VOUT): 5V regulated output
• Peak Output Current: Up to 1A
• Charging Current: Up to 1000mA (adjustable)
• Efficiency: 90%+
• Quiescent Current: <5mA

1. Connecting the Battery:

   • Connect the positive terminal of the LiPo/LiIon battery to the BAT pin.
   • Connect the negative terminal to the GND pin.

2. Powering Your Project:

   • Connect the 5V and GND pins to your project's power input.

3. Charging the Battery:

   • Connect a USB cable from a power source to the USB port on the PowerBoost 1000C.

4. Enabling/Disabling the Output:

   • To enable the 5V output, connect the EN pin to GND. To disable, leave it floating or connect it to 5V.

• Do not exceed the recommended input voltage as it may damage the board.
• Ensure the polarity of the battery is correct to prevent damage.
• Avoid drawing more than 1A from the 5V output to maintain stable operation.
• Use a quality USB cable for charging to ensure proper current flow.

• Battery not charging: Check the USB cable and power source. Ensure the battery is properly connected with correct polarity.
• No output voltage: Ensure the EN pin is connected to GND to enable the output.
• Output voltage drops under load: This may occur if the load exceeds 1A. Reduce the load to within the specified limits.

• Double-check all connections, especially the battery and enable pin.
• Use a multimeter to verify the battery voltage and output voltage.
• If the LBO pin is active (low), the battery is under-voltage. Recharge the battery.

Q: Can I use the PowerBoost 1000C with a battery that has a higher capacity? A: Yes, as long as the battery voltage is within the range of 3.7V nominal.

Q: Is it possible to adjust the charging current? A: Yes, the charging current can be adjusted by changing the resistor on the charging circuit.

Q: What should I do if the PowerBoost 1000C gets hot during use? A: Ensure that the current draw is within the specified limits and that there is adequate ventilation around the board.

// This example demonstrates how to use the Adafruit PowerBoost 1000C
// with an Arduino UNO to power the Arduino from a LiPo battery.

void setup() {
  pinMode(13, OUTPUT); // Use the onboard LED as an indicator
}

void loop() {
  digitalWrite(13, HIGH);   // Turn the LED on
  delay(1000);              // Wait for a second
  digitalWrite(13, LOW);    // Turn the LED off
  delay(1000);              // Wait for a second
}

// Note: The PowerBoost 1000C does not require specific code to operate.
// It simply provides power to the Arduino. This example is to show that
// the Arduino can run on battery power through the PowerBoost 1000C.

Remember to keep the code comments concise and within the 80 character line length limit. The example provided is a simple blink sketch that demonstrates the Arduino running on battery power supplied by the PowerBoost 1000C.