Sensor Node Design Assistance
Make me a temperature and humidity sensor node with Wifi and Bluetooth, powered by USB-C (5V) for consumer use.
It should be a low-power environmental node with a digital T/RH sensor, ultra-low-power MCU with Wi-Fi + Bluetooth (dual-radio) — 2.4 GHz 802.11 b/g/n plus BLE 5.x powered by USB-C (5 V) — USB-C receptacle 5 V default; include reverse/OVP/UVLO/OCP protection and plan for 0.5–3 A sources.
Thought for 1 min 18 sec
I’ll build your USB‑C powered low‑power T/RH node with dual‑radio Wi‑Fi + BLE. Here’s the plan:
- Add a low‑power Wi‑Fi+BLE MCU module, required passives, onboard antenna, programming header, and status LED.
- Add a digital T/RH sensor meeting –10 to 50 °C, ±0.1 °C; include I2C pull‑ups, decoupling, and thermally isolated placement.
- Add USB‑C (5 V sink) with CC pull‑downs and ESD; add an input protection device providing reverse, OVP, UVLO, and OCP; add a high‑efficiency 5 V→3.3 V buck sized for Wi‑Fi current bursts; implement solid ground planes managing switching return paths away from the sensor.
- Connect power tree, I2C, boot/programming, and LED nets; annotate and set properties; prepare layout with antenna keep‑out and sensor edge exposure; run ERC/DRC and availability review.
Click Start on the plan bar to proceed, or tell me changes you want before we begin.
Choose specific MCU
Pick T/RH sensor
Define power budget
USB‑C protection choice
Mechanical / form factor
To get started, talk to Flux or create a New Document.
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