Create a new electronics project named: “Universal Configurable 10-Battery Controller – Concept Model” IMPORTANT PROJECT SCOPE This project is only for: - Concept demonstration - Supervisor presentation - Schematic visualization - PCB-layout visualization - 3D PCB visualization It is NOT intended for physical manufacturing or connection to real batteries. Use available Flux library components. If an exact component is unavailable, use the closest compatible generic placeholder and clearly label it. Do not stop or wait for approval because of unavailable parts. Continue using placeholders. PROJECT IDEA Create a universal controller concept for ten separately connected batteries or battery modules. The PCB must have ten independent battery connectors. Each connector must contain: - One positive terminal - One negative terminal At one time, all ten connected batteries will be the same selected type, chemistry and voltage range. Examples: - 10 × 1.2 V cells - 10 × 3.7 V cells - 10 × 12 V battery modules Before operation, the user enters one battery-set profile into the controller. The selected profile applies to all ten battery positions. The battery profile concept includes: - Battery chemistry - Nominal voltage - Maximum charging voltage - Minimum discharge voltage - Battery capacity - Maximum charging current - Maximum output current - Temperature limits The controller conceptually adjusts its monitoring and switching limits according to the selected profile. This is not a conventional fixed-voltage BMS. It is a configurable ten-battery control-system concept. ================================================== 1. MAIN CONTROLLER SECTION ================================================== Use: U1 = ESP32-S3-WROOM-1 If the exact ESP32-S3-WROOM-1 is unavailable, use the nearest ESP32-S3 module or a generic ESP32-S3 placeholder. The ESP32-S3 section must include: - 3.3 V logic power - Reset button - Boot button - Required pull-up and pull-down resistors - Decoupling capacitors - Status LED - Clearly labelled GPIO control signals Label this area: “MAIN CONTROLLER” ================================================== 2. USB-C PROGRAMMING AND PROFILE-UPLOAD PORT ================================================== Add one USB-C connector named: J_USB Label it clearly: “USB-C PROGRAMMING / SYSTEM UPLOAD” Use the USB port for: - Firmware uploading - Battery-profile entry - Serial communication - System configuration Include concept-level parts: - USB-C connector - CC1 and CC2 resistors - USB ESD-protection placeholder - USB power-protection placeholder - USB status LED Connect USB data according to the available ESP32-S3 USB interface. If the selected ESP32-S3 placeholder does not expose native USB, use a generic USB-to-UART bridge placeholder. Do not stop because of library limitations. ================================================== 3. TEN SEPARATE BATTERY CONNECTORS ================================================== Create ten independent two-pin screw-terminal connectors: J_CELL1 Pin 1 = CELL1+ Pin 2 = CELL1- J_CELL2 Pin 1 = CELL2+ Pin 2 = CELL2- J_CELL3 Pin 1 = CELL3+ Pin 2 = CELL3- J_CELL4 Pin 1 = CELL4+ Pin 2 = CELL4- J_CELL5 Pin 1 = CELL5+ Pin 2 = CELL5- J_CELL6 Pin 1 = CELL6+ Pin 2 = CELL6- J_CELL7 Pin 1 = CELL7+ Pin 2 = CELL7- J_CELL8 Pin 1 = CELL8+ Pin 2 = CELL8- J_CELL9 Pin 1 = CELL9+ Pin 2 = CELL9- J_CELL10 Pin 1 = CELL10+ Pin 2 = CELL10- Use clearly visible polarity labels beside every connector. Add large PCB silkscreen text: CELL 1 + - CELL 2 + - CELL 3 + - CELL 4 + - CELL 5 + - CELL 6 + - CELL 7 + - CELL 8 + - CELL 9 + - CELL 10 + - Label this entire area: “10 INDEPENDENT BATTERY CONNECTIONS” ================================================== 4. MOSFET SWITCHING SECTION ================================================== Do not use mechanical relays. Use MOSFET-based solid-state switching. For every battery position, create one clearly separated switching block. Each battery switching block must contain: - Two bidirectional solid-state switching channels - Back-to-back N-channel MOSFET arrangements - Isolated gate-driver placeholders - Gate resistors - Gate-source pull-down resistors - Fuse placeholder - TVS-protection placeholder - Test points Use: - Generic 150 V to 200 V N-channel MOSFET placeholders - VOM1271 isolated photovoltaic MOSFET-driver placeholders If VOM1271 is unavailable, use a generic isolated MOSFET-gate-driver or photovoltaic-isolator placeholder. Each bidirectional switch must visually use two N-channel MOSFETs connected back-to-back. Use approximately: - 40 power MOSFET placeholders - 20 isolated MOSFET-driver placeholders Organize them as ten repeated groups: BATTERY SWITCH 1 BATTERY SWITCH 2 BATTERY SWITCH 3 BATTERY SWITCH 4 BATTERY SWITCH 5 BATTERY SWITCH 6 BATTERY SWITCH 7 BATTERY SWITCH 8 BATTERY SWITCH 9 BATTERY SWITCH 10 Clearly show the idea: CELL CONNECTOR → PROTECTION → VOLTAGE SENSING → BIDIRECTIONAL MOSFET SWITCHING → CONFIGURABLE BATTERY BUS Label this section: “SOLID-STATE BATTERY SWITCHING” Add a visible note: “Back-to-back MOSFETs represent bidirectional isolation.” ================================================== 5. SWITCH-CONTROL EXPANSION ================================================== Add three cascaded output-driver devices: U2, U3 and U4 = TPIC6B595 If TPIC6B595 is unavailable, use: - 74HC595 shift registers - Appropriate generic MOSFET-driver stages Connect them to the ESP32-S3 using: - DATA - CLOCK - LATCH - OUTPUT ENABLE Cascade all three devices. Add decoupling capacitors near every driver. Use clearly labelled switch-control signals such as: CELL1_SWITCH_A CELL1_SWITCH_B CELL2_SWITCH_A CELL2_SWITCH_B Continue this pattern through: CELL10_SWITCH_A CELL10_SWITCH_B Show the signal flow clearly: ESP32-S3 → CASCADED OUTPUT DRIVERS → ISOLATED GATE DRIVERS → BACK-TO-BACK MOSFETS ================================================== 6. BATTERY-VOLTAGE MONITORING ================================================== Create ten battery-voltage-sensing blocks. Use: - ISO224 isolated voltage-sensing placeholders - Suitable resistor-divider placeholders - RC filters - Protection resistors - Test points If ISO224 is unavailable, use a generic isolated voltage-sensing block. Label the outputs: CELL1_VSENSE CELL2_VSENSE CELL3_VSENSE CELL4_VSENSE CELL5_VSENSE CELL6_VSENSE CELL7_VSENSE CELL8_VSENSE CELL9_VSENSE CELL10_VSENSE Add three ADS1115 ADC devices to provide at least ten sensing channels. Connect the ADS1115 devices to the ESP32-S3 through I2C. Add: - SDA - SCL - I2C pull-up resistors - Decoupling capacitors - Different I2C address configurations Label this section: “ISOLATED BATTERY MONITORING” ================================================== 7. TEMPERATURE MONITORING ================================================== Add ten two-pin NTC thermistor connectors: J_NTC1 through J_NTC10 Each connector represents one battery-temperature sensor. Use: - 10 kΩ NTC placeholders - Voltage-divider resistors - Filter capacitors - Analogue-multiplexer placeholder if required Label the temperature signals: CELL1_TEMP CELL2_TEMP CELL3_TEMP CELL4_TEMP CELL5_TEMP CELL6_TEMP CELL7_TEMP CELL8_TEMP CELL9_TEMP CELL10_TEMP Label this section: “BATTERY TEMPERATURE MONITORING” ================================================== 8. CHARGING PORT AND CHARGER CONCEPT ================================================== Add one two-pin charging connector: J_CHARGE Pin 1 = CHG+ Pin 2 = CHG- Label it clearly: “PROGRAMMABLE CHARGING PORT” Add concept-level components: - Charging-input fuse - Reverse-polarity-protection block - TVS diode - Charging current sensor - Charging-status LED - Input-voltage test points Use: - LM5176 buck-boost-controller placeholder - MCP4728 DAC placeholder - TMCS1100 current-sensor placeholder If any exact device is unavailable, use generic functional placeholders. Show the charger as a programmable buck-boost charging concept. The ESP32-S3 conceptually controls: - Charging-voltage reference - Charging-current reference - Charging enable - Charging shutdown Add a visible note: “Charging algorithm selected according to entered battery profile.” Do not claim that this is a complete production multi-chemistry charger. ================================================== 9. OUTPUT / DISCHARGE PORT ================================================== Add one two-pin output connector: J_OUTPUT Pin 1 = OUT+ Pin 2 = OUT- Label it clearly: “CONTROLLED OUTPUT / DISCHARGE PORT” Add: - Output fuse - Output TVS placeholder - Output current-sensor placeholder - Output-status LED - OUT+ and OUT- test points Use a second TMCS1100 current-sensor placeholder. Label the current signals: CHARGE_CURRENT OUTPUT_CURRENT ================================================== 10. CONFIGURABLE BATTERY-BUS CONCEPT ================================================== Create two clearly labelled conceptual functional blocks: A. PARALLEL CHARGING BUS Labels: PARALLEL_CHARGE_POS PARALLEL_CHARGE_NEG B. CONFIGURABLE OUTPUT MATRIX Labels: OUTPUT_MATRIX_POS OUTPUT_MATRIX_NEG Show every battery switching block connecting conceptually to these buses. Do not create an unsafe or manufacturing-ready high-current matrix. Do not directly route a real ten-module series/parallel power network. Represent the series/parallel switching system using: - Hierarchical blocks - Net labels - MOSFET-switch symbols - Clear explanatory notes Add this warning: “CONFIGURABLE POWER MATRIX – CONCEPTUAL REPRESENTATION ONLY” Add another warning: “Firmware must use break-before-make switching and hardware interlocks.” ================================================== 11. DISPLAY AND USER-CONTROL SECTION ================================================== Add: - 1.3-inch I2C OLED-display placeholder - Rotary encoder with push button - Confirm button - Emergency-stop or system-disable input Label the controls: PROFILE SELECT CONFIRM SYSTEM DISABLE The display conceptually shows: - Selected battery profile - Battery type - Nominal voltage - Cell/module voltages - Charging state - Output state - Temperature - Fault messages Label this section: “BATTERY PROFILE AND USER INTERFACE” ================================================== 12. POWER-SUPPLY SECTION ================================================== Add clearly separated power rails: - USB_5V - 3V3_LOGIC - AUX_POWER - GND Add: - 3.3 V regulator placeholder - Auxiliary power-input connector - Reverse-polarity protection - Input fuse - Input and output capacitors - Power LED - Test points Label the connector: J_AUX_POWER Pin 1 = AUX+ Pin 2 = AUX- Label this section: “CONTROL POWER SUPPLY” ================================================== 13. STATUS INDICATORS ================================================== Add LEDs with current-limiting resistors for: - LOGIC POWER - USB CONNECTED - CHARGING - OUTPUT ACTIVE - FAULT - SYSTEM READY - PROFILE LOADED Place the LEDs in one clearly visible row. ================================================== 14. SCHEMATIC ORGANIZATION ================================================== Organize the schematic into clear functional sections: 1. ESP32-S3 controller 2. USB-C programming and upload 3. Battery-profile user interface 4. Output-driver expansion 5. Battery voltage monitoring 6. Temperature monitoring 7. Ten cell/module connectors 8. Ten MOSFET-switching blocks 9. Programmable charger concept 10. Controlled output 11. Power supplies 12. Status indicators Use net labels instead of long crossing wires. Add large schematic notes: “UNIVERSAL CONFIGURABLE 10-BATTERY CONTROLLER” “ALL TEN BATTERIES MUST USE THE SAME SELECTED PROFILE AT ONE TIME” “EXAMPLES: 10 × 1.2 V, 10 × 3.7 V OR 10 × 12 V MODULES” “BATTERY PROFILE ENTERED THROUGH USB OR USER INTERFACE” “CONCEPT MODEL ONLY – NOT FOR REAL BATTERY CONNECTION” ================================================== 15. PCB LAYOUT ================================================== After completing the schematic, create a large two-layer concept PCB. Use a rectangular board. Arrange the PCB clearly for presentation. Place CELL 1 through CELL 5 along the top edge. Place CELL 6 through CELL 10 along the bottom edge. Place each MOSFET-switching block directly beside its corresponding battery connector. Place the ESP32-S3 and USB-C connector near the centre-left. Place the OLED display and rotary encoder near the front or centre edge. Place the output-driver ICs near the centre. Place voltage-monitoring ADCs and sensing blocks in a clearly labelled area. Place the charging port at the left edge. Place the output port at the right edge. Place the auxiliary power connector at the bottom or side edge. Place all status LEDs in one visible row. Group the board into visually separated areas: - BATTERY CONNECTIONS - MOSFET SWITCHING - CONTROL SECTION - MONITORING SECTION - CHARGING SECTION - OUTPUT SECTION - USER INTERFACE - POWER SECTION ================================================== 16. PCB SILKSCREEN ================================================== Add large PCB silkscreen text: “UNIVERSAL CONFIGURABLE 10-BATTERY CONTROLLER” “CONCEPT MODEL” “FOR PRESENTATION ONLY” Add clear labels for: CELL 1 through CELL 10 CELL+ and CELL- USB-C PROGRAMMING / SYSTEM UPLOAD PROGRAMMABLE CHARGING PORT CONTROLLED OUTPUT PORT AUXILIARY POWER BATTERY PROFILE DISPLAY SOLID-STATE SWITCHING ISOLATED MONITORING Add large polarity symbols directly beside every terminal. ================================================== 17. PCB ROUTING ================================================== Route the safe, low-voltage concept circuits: - ESP32-S3 control signals - USB communication - Shift-register or output-driver signals - Isolated-driver input signals - I2C buses - Display and encoder signals - LEDs - Logic power - Monitoring outputs Use ground planes where appropriate. Keep uncertain high-current battery-series/parallel matrix connections conceptual or unrouted. Do not invent unsafe high-current connections merely to remove unrouted nets. Add PCB warning text: “BATTERY POWER MATRIX – CONCEPT ONLY” ================================================== 18. 3D VIEW ================================================== Generate a clean 3D PCB view. Use available 3D models for: - Screw terminals - USB-C connector - ESP32-S3 module - OLED display - Rotary encoder - DIP or surface-mount ICs - MOSFETs - LEDs - Fuses - Power connectors If exact 3D models are unavailable, use suitable generic placeholders. The final 3D view must clearly show: - Ten positive and negative battery connectors - Charging port - Output port - USB upload port - Display and controls - MOSFET switching sections - Controller section - Status LEDs ================================================== 19. FINAL OUTPUT ================================================== Complete and save: 1. Organized schematic 2. PCB layout 3. Routed low-voltage control circuitry 4. Presentation-quality silkscreen 5. 3D PCB view 6. Draft BOM 7. Schematic review notes Run ERC and DRC. Correct ordinary low-voltage schematic and PCB errors. List placeholder parts separately. Do not stop because of manufacturer-part-number warnings. Do not request additional approval. Proceed now and complete the entire presentation concept using available library components and generic placeholders.