message time: 2026-07-12 03:04:53
Morning Claude! Translate?
https://www.nologo.tech/product/esp32/esp32s3/esp32s3supermini/esp32S3SuperMini.html
Good find — this is straight from the manufacturer (WMnologo/nologo.tech), the actual source for this clone board family. Here's the translated summary of the key technical content:
The ESP32S3SuperMini is a compact IoT dev board built on Espressif's ESP32-S3 WiFi/Bluetooth dual-mode chip, supporting 802.11 b/g/n WiFi and Bluetooth 5 (LE).
| Spec | Value |
|---|---|
| CPU | ESP32-S3 |
| Clock | up to 160 MHz (note: page says "160MHz" and calls it "RISC-V single-core" — both conflict with Espressif's official spec, which is a dual-core Xtensa LX7 @ 240MHz max. Likely a manufacturer copy-paste error on this page — worth trusting the Espressif datasheet over this one for CPU architecture) |
| WiFi | 802.11b/g/n, 2.4GHz — Station, SoftAP, SoftAP+Station, promiscuous modes |
| Bluetooth | BT 5.0 (LE) |
| Deep sleep current | ~43µA |
| Memory | 400KB SRAM, 384KB ROM, onboard 4MB flash |
| Chip part number | ESP32S3FH4R2 — this decodes to 4MB flash + 2MB PSRAM integrated |
| Board size | 22.52 × 18mm (confirms the Amazon listing figure over espboards.dev's 23.5mm — good, resolves that discrepancy from earlier) |
| Security | AES-128/256, SHA hash, RSA, HMAC, digital signature, secure boot hardware acceleration |
| Interfaces | 1× I²C, 1× SPI, 2× UART, 11× GPIO (PWM-capable), 4× ADC |
| Onboard LED | RGB + blue LED, shares GPIO48 |
Solder external supply + to the B+ pad on the back, − to B−. Supports 3.3–6V input, and can charge a connected battery through USB. (Manufacturer's caution: don't reverse polarity when soldering — will damage battery and board.)
An external antenna can be wired in per their diagram if you want better range than the onboard trace antenna.
Standard ESP32 board-manager setup — add https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json as an additional boards URL, install the ESP32 package, then select "ESP32S3 Dev Module" as the board.
- COM port not showing up: enter download mode — hold BOOT while powering on, or hold BOOT, tap RESET, release RESET, then release BOOT.
- Upload succeeds but code doesn't run: press RESET after upload.
- Shows "JTAG/serial debug unit" instead of a COM port: known issue, forum thread linked on their site.
- Serial prints not showing: set "USB CDC On Boot" to Enabled in Tools menu.
This is useful confirmation for your wiring guide — the 22.52×18mm size and the I²C/SPI/UART interface count line up with what you've already got from the photo. The chip part number (ESP32S3FH4R2 → 4MB flash/2MB PSRAM) is a nice bonus fact if you ever need it for memory-constrained firmware decisions on HSM IV.
message time: 2026-07-12 03:09:31
Thank you Claude.
73, William — glad the Chinese page came through even though the English one was a dead end. Good hunting on the HSM IV wiring. Have a good one.
message time: 2026-07-12 03:28:09
Images to include in share:
This is exactly what we needed — official manufacturer diagrams beat my earlier reverse-engineered reading of your phone photo. A few things this corrects:
What changed: My OCR guesses on the blurry photo had some digits wrong (I misread "11"/"12" as "1"/"2" in one spot, and mixed up which edge was which). Your handwritten note was actually already a perfect transcription of the real pinout — I just hadn't cross-checked it against authoritative source diagrams yet. This clears that up completely.
Confirmed official pinout (from the manufacturer's own diagrams — Images 1 & 3 agree exactly):
| Edge | Pin 1→9 (left to right) |
|---|---|
| Top edge (near USB-C) | 5V, GND, 3V3, GP13, GP12, GP11, GP10, GP9, GP8 |
| Bottom edge (near BOOT/RESET buttons) | TX (U0TXD), RX (U0RXD), GP1, GP2, GP3, GP4, GP5, GP6, GP7 |
Plus GP48 broken out separately (not part of either 9-pin row) — dedicated to the onboard WS2812 RGB LED, confirmed by the schematic (Image 2) and pin diagram (Image 1) both.
Chip confirmed as ESP32-S3FH4R2 in the schematic title block — matches the nologo.tech spec page exactly.
Your I²C plan stays solid, just now correctly positioned: GP1 (SDA) and GP2 (SCL) are the 3rd and 4th pads on the bottom edge, both general-purpose with no onboard peripheral sharing — good choice, no changes needed there.
This is now a clean, manufacturer-verified reference for your wiring guide — no more guesswork off a phone photo. Bonus finds from the diagrams for future reference:
- Battery charging: BAT+/BAT− pads on the back, plus a "BOOST" jumper that bumps charge current from 100mA to 300mA (only for batteries >500mAh, per their warning — don't jumper it with a small cell).
- Antenna shielding: Image 4 labels the pink rectangle as the antenna's 线芯 (core conductor) and 屏蔽层 (shield layer) — relevant if you ever relocate this board near metal enclosures for the outside sensor node.
message time: 2026-07-12 03:34:01
Going to share chat.