Importing Components for Project


flux

Work done
  • Updated project description with E-stop goals and hashtags (#E_STOP #MOSFET #PH2.0 #SAFETY)
  • Defined system architecture and saved the following Mermaid diagram in the “System Architecture” property:

Diagram


Power 10kΩ Pull-up\n3.3V Rail "ESP32\n(IO12)" "PH2.0 Conn1\nE_STOP_IN1" "PH2.0 Conn2\nE_STOP_IN2" "MOSFET Gate\n(E_STOP_DRIVE)" "3.3V Rail" "36V Bus" "Contactor Coil" "MOSFET Drain\n(E_STOP_PATH)" "MOSFET Source" "System Ground"
Tasks not yet done
  • Place two series-connected PH2.0 connectors (E_STOP_IN1, E_STOP_IN2)
  • Select and place a logic-level N-channel MOSFET (≥50 V, 60 A)
  • Add 10 kΩ pull-up and gate-to-source resistors
  • Wire ESP32 IO12 through connectors to MOSFET gate and add resistors
  • Insert MOSFET into ground return path and sever the direct ground link
  • Rename nets to E_STOP_CONN1, E_STOP_CONN2, E_STOP_DRIVE, E_STOP_PATH
  • Run ERC to verify there are no floating pins or violations
Success criteria
  • E-stop circuit not yet integrated; criteria are not met.
Next step
Move on to the “Key components” phase: pick and add the two PH2.0 connectors and the 50 V/60 A MOSFET to the schematic.

Flux stopped


Schematic of PCB E-dolly
U2 IO5 - U4 AP_CS
J3 Pin_2 - U2 IO33
U5 SW - L2 P1
J2 Pin_14 - U2 IO26
J3 Pin_3 - U2 IO27
J3 Pin_2 - U2 IO33
U3 D - U2 IO17
U2 IO5 - U4 AP_CS
U6 TXD - U2 RXD0
K1 - - K2 -
J3 Pin_1 - U2 IO32
J3 Pin_6 - U2 IO21
K1 - - K2 -
J3 Pin_1 - U2 IO32
U5 VIN - CN1 +
U2 EN - R20 P1
J3 Pin_5 - U2 IO19
J3 Pin_4 - U2 IO18
U6 RXD - U2 TXD0
U2 IO22 - U4 AP_SCL/AP_SCLK
U4 INT1/INT - U2 IO34
K1 - - K2 -
J2 Pin_13 - U2 IO25
J3 Pin_4 - U2 IO18
K1 - - K2 -
U5 GND - CN1 -
R4
Resistance
10kΩ
R11
Resistance
10kΩ
CN5
CN6
C6
Capacitance
100nF
C9
Capacitance
1uF
U2

PCB E-dolly

PCB E-dolly thumbnail