Circuit Documentation
Summary of the Circuit
This circuit integrates a Nano 33 BLE microcontroller with a TP4056 lithium battery charger module, a TM1637 4-digit 7-segment display, and a 3.7V battery. The Nano 33 BLE is responsible for controlling the display via digital pins, while the TP4056 module charges the battery and provides power to the Nano 33 BLE. The TM1637 display is powered by the 3.3V output from the Nano 33 BLE and communicates with the microcontroller through two digital pins for clock and data input.
Component List
Nano 33 BLE with pinout
- Description: A compact and low-power microcontroller board based on the nRF52840 microcontroller, featuring Bluetooth Low Energy and a variety of digital and analog pins.
- Purpose: Acts as the central processing unit of the circuit, controlling the TM1637 display and interfacing with other components.
TP4056
- Description: A linear lithium-ion battery charger module with onboard charging and protection circuitry.
- Purpose: Charges the 3.7V battery and provides a stable power output to the Nano 33 BLE.
3.7V Battery
- Description: A single-cell lithium-ion battery.
- Purpose: Provides power to the circuit when not connected to an external power source.
TM1637
- Description: A 4-digit 7-segment display module with an integrated TM1637 driver chip for easy display control.
- Purpose: Displays information under the control of the Nano 33 BLE.
Comments
- Description: Placeholder components that may represent annotations or notes in the circuit design.
Wiring Details
Nano 33 BLE with pinout
- TX, RX: Serial communication pins (not connected in this circuit).
- RESET: Reset pin (not connected in this circuit).
- GND: Connected to the GND pin of the TP4056 and TM1637 modules.
- D2: Connected to the CLK pin of the TM1637 display.
- D3: Connected to the DIO pin of the TM1637 display.
- VIN: Connected to the OUT+ pin of the TP4056 module.
- 3V3: Provides power to the VCC pin of the TM1637 display.
- Other Pins: Not used in this circuit.
TP4056
- OUT-: Connected to the GND pin of the Nano 33 BLE.
- B-: Connected to the negative terminal of the 3.7V battery.
- B+: Connected to the positive terminal of the 3.7V battery.
- OUT+: Connected to the VIN pin of the Nano 33 BLE.
- IN-, IN+: Power input pins (not connected in this circuit).
3.7V Battery
- +: Connected to the B+ pin of the TP4056.
- -: Connected to the B- pin of the TP4056.
TM1637
- CLK: Connected to the D2 pin of the Nano 33 BLE.
- DIO: Connected to the D3 pin of the Nano 33 BLE.
- VCC: Connected to the 3V3 pin of the Nano 33 BLE.
- GND: Connected to the GND pin of the Nano 33 BLE.
Documented Code
No code has been provided for the microcontroller. The expected code should initialize the TM1637 display and handle communication between the Nano 33 BLE and the display module. It should also include routines for updating the display with relevant information, such as sensor readings or status messages.
Please note that the actual implementation of the code will depend on the specific requirements of the circuit's application. The code should be written and uploaded to the Nano 33 BLE using an appropriate development environment, such as the Arduino IDE.