WiFi & Bluetooth Sensor Node


Worked for 1 min
6/6 Run schematic/design checks and fix actionable issues

Rename project, create specification, and record initial requirements/power budget

Select library parts for MCU, T/RH sensor, USB-C input, regulator, and protection

Add main components and supporting passives to the schematic

Wire USB-C power/protection, 3.3 V rail, MCU boot/debug, USB data, I2C sensor, and indicators

Create firmware/regulatory/bring-up project files

Run schematic/design checks and fix actionable issues

Thought for 46 sec
Reading project docs.
Getting a BOM overview.
Completed 11 design checks — found 114 issues.
Thought for 42 sec — Verifying eFuse features
Read U2, TPS259530DSGT datasheets.
Thought for a moment
Searching for eFuse solutions
I need to address the issue with TPS2596 that requires fixing since the user needs the reverse. It looks like I have to replace or add an ideal diode. To do that, I should search for a part with back-to
Worked for 3 mins 14 sec
Thought for 47 sec — Searching for eFuse solutions
Found 4 results for TPS25942.
Found 3 results for TPS25944.
Found 3 results for Find eFuse with true reverse current blocking back-to-back FET for 5 V USB-C input, includes OVP UVLO OCP adjustable current limit around 1 A, available in Flux library, active SMD part. Candidate TI TPS25942 TPS25944 or similar..
Thought for 43 sec
Thought for 18 sec — Planning component replacement
Read TPS25940LRVCR tps25940.pdf.
Thought for 1 min 36 sec
Thought for 28 sec — Calculating resistor values
Added U2 and R15 and removed U2.
Thought for a moment
Reading schematic details for U2.
Thought for 25 sec
Set properties on R3, R5, R6 and 1 more.
Thought for 18 sec
Connected U2:IN_1, U2:IN_2, U2:IN_3 and 20 more and disconnected R6:P2 and R4:P1.
Thought for 32 sec
Connected U2:~FLT, U2:IMON, R15:P1 and 1 more.
Thought for 26 sec
Thought for a moment
Considering net naming issues
I’m noticing that the patch used net EFUSE_OVP, but the actual net might be EFUSE_OVCSEL. I should

Demo Complete

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D1
J1
U1
U2
R1
Resistance
5.1kΩ
C4
Capacitance
10µF
C17
Capacitance
1nF
C7
Capacitance
100nF
C3
Capacitance
10µF
C5
Capacitance
10µF
R13
Resistance
100kΩ
R4
Resistance
100kΩ
R7
Resistance
100kΩ
C13
Capacitance
100nF
C2
Capacitance
10nF
C15
Capacitance
100nF
R10
Resistance
10kΩ
C8
Capacitance
1µF
R15
Resistance
19.1kΩ
R3
Resistance
88.7kΩ
R14
Resistance
100Ω
C14
Capacitance
1µF
C9
Capacitance
10µF
R2
Resistance
5.1kΩ
C10
Capacitance
100nF
R8
Resistance
100kΩ
R9
Resistance
10kΩ
R6
Resistance
39.2kΩ
C1
Capacitance
1µF
R11
Resistance
1kΩ
C16
Capacitance
10nF
C6
Capacitance
10µF
C12
Capacitance
100nF
R12
Resistance
10kΩ
C11
Capacitance
100nF
R5
Resistance
464kΩ
U3
D2
D4
D3
U4
L1
SW1
SW2
LED1
J2

USB-C WiFi BLE TH Sensor

USB-C WiFi BLE TH Sensor thumbnail