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 1 min 15 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 a moment
Calculating resistor values
I need to replace some components in my circuit, specifically requiring RILIM for 1A with an equation that seems a bit off. For R = 88.7k, this gives 0.99A, so R3 must change from 909Ω to 88.7k. I also want to set up an OVP/UVLO divider using resistors R1, R2, R3 and see if I can repurpose the existing R5, R6, and R4. I need to calculate the appropriate values based on thresholds for VUV and VOV while ensuring everything fits correctly in the designed circuit.
Considering IMON resistor
I'm thinking about whether I need to add an IMON resistor to my circuit. If it's going to be unused, I might just leave it out altogether. It's important that I carefully evaluate its purpose, so I don't add unnecessary components. I want to keep the design clean and functional, so if the IMON resistor isn't needed, I should definitely skip it to simplify things. Let

J1
U1

USB-C WiFi BLE TH Sensor

USB-C WiFi BLE TH Sensor thumbnail