ndoo.sg

Graw DFM-17 Radiosonde - CLI unlock commands

Andrew Yong (andrew@undisclosed.example.com) — 2026-08-19T15:58:28+00:00

Graw DFM-17 Radiosonde UART Bootloader & Programming Prerequisites * Custom USB Mini-B Cable * STM32CubeProgrammer Custom USB Mini-B Cable USB Mini-B Color Code (USB) Signal +5V Red +5V USBD- White TXD USBD+ Green RXD GND Black GND Steps * Prepare the custom cable (refer to section below)

img_3063.png

Andrew Yong (andrew@undisclosed.example.com) — 2026-08-18T05:19:02+00:00

stm32cubeprogrammer_unprotect.png - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-08-18T04:54:02+00:00

stm32cubeprogrammer_uart.png - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-08-18T04:50:35+00:00

dfm-17_boot0.png - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-08-18T04:43:27+00:00

OpenWrt Tailscale Notes - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-07-28T04:04:21+00:00

OpenWrt Tailscale Notes Tailscale Exit Node with NAT Hairpin (Loopback) Prerequisite: OpenWrt Tailscale guide done (zone, masq, forwarding, exit node). All steps via SSH. * Create /etc/firewall.tailscale-reflect.sh: #!/bin/sh nft insert rule inet fw4 dstnat iifname tailscale0 jump dstnat_tailscale 2>/dev/null . /lib/functions/network.sh network_get_ipaddr WANIP wan [ -n "$WANIP" ] || exit 0 i=0 while uci -q get firewall.@redirect[$i] >/dev/null 2>&1; do if [ "$(uci -q get firewall.@re…

KiCad and JLCPCB - 50 ohm JLC0216

Andrew Yong (andrew@undisclosed.example.com) — 2026-07-06T07:16:37+00:00

KiCad and JLCPCB CPWG A 50-ohm CPWG on JLC0216 with 0.1mm clearance between trace and ground pour: 0.3472mm trace. Impedance Control Stackup KiCad board stackup editor parameters for JLCPCB, with dielectric constants and thicknesses reverse-engineered from the SI9000 field solver inputs embedded in the JLCPCB impedance calculator.

Perodua Kancil Overview - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-06-23T16:49:26+00:00

Perodua Kancil Overview The Perodua Kancil is a city car produced by Perodua (Malaysia) from 1994 to 2009. A rebadged Daihatsu Mira, it was Perodua's first model and one of the cheapest cars on the Malaysian market. It was sold with 660cc and 850cc engines — carburetted at launch, with fuel injection (EFI) on the last variants.

Upgrading Perodua Kancil K4 660 Lamps - [Bulbs]

Andrew Yong (andrew@undisclosed.example.com) — 2026-05-04T20:58:03+00:00

Upgrading Perodua Kancil K4 660 Lamps Bulbs Function Location Total Quantity (for the row) Bulb LED Color Headlamp Front Headlamp 2 H4 White Sidelamp Front Headlamp 2 T10/W5W White or Yellow (to your preference) Front Turn Signal Front Turn Signal

screenshot_2026-03-28_at_02.57.26.png

Andrew Yong (andrew@undisclosed.example.com) — 2026-05-04T20:48:25+00:00

PlatformIO Notes - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-04-16T05:53:59+00:00

PlatformIO Notes ccache with PlatformIO Installation brew install ccache Setup Create ~/.platformio/scripts/ccache.py: Import("env") import shutil ccache = shutil.which("ccache") if not ccache: Return() def wrap(val): if val and not val.startswith("ccache "): return "ccache " + val return val env["CC"] = wrap(env["CC"]) env["CXX"] = wrap(env["CXX"]) env["AS"] = wrap(env["AS"])

Perodua Kancil K4 660 Service - [Some Part Numbers]

Andrew Yong (andrew@undisclosed.example.com) — 2026-04-15T05:48:33+00:00

Perodua Kancil K4 660 Service

Charging

General Information Vehicle Models * L200RS-GKRSM * L200RS-KMDSM * Engine: EF-CL * Catalyzer: Without * Fuel system: Carburetor * Fuel evaporative …

STM32 Sleep/Wake Issues - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-04-06T15:31:49+00:00

STM32 Sleep/Wake Issues Here are a bunch of mistakes I have made that resulted in STM32 not sleeping or not waking. STM32 Not Sleeping * IWDG not stopping * Conditions: * Option bytes -> IWDG_SW bit: cleared (0) * MCU core is in Stop mode

Charging - Add more sections

Andrew Yong (andrew@undisclosed.example.com) — 2026-04-05T17:23:56+00:00

Charging Components of Alternator * Alternator assembly * Pulley lock nut * Alternator pulley * Spacer * Drive end frame assembly * Stud bolt * Bearing * Retainer plate * Alternator rotor assembly * Spacer * Bearing

ch00003-99999.png - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-04-05T16:14:38+00:00

ShinyShitbox - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-04-04T11:54:57+00:00

ShinyShitbox "Live at ndoo.github.io/ShinyShitbox. Code at ." Client-side vehicle maintenance tracker. All data lives in your browser's IndexedDB — no account, no server, no sync. Open index.html directly in any browser. No installation or local server needed. All data is stored only in your browser's IndexedDB. It will be lost if you clear browser data, switch browsers, or reinstall your

90980-10803.svg - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-03-25T03:45:09+00:00

img_9505.jpg - created

Andrew Yong (andrew@undisclosed.example.com) — 2026-03-11T03:56:42+00:00

gat562_mesh_solar_relay_2.7.16_1124.uf2 - created

Andrew Yong (andrew@undisclosed.example.com) — 2025-12-22T16:58:58+00:00

update-gat562_board_bootloader-0.4.5_nosd.uf2 - created

Andrew Yong (andrew@undisclosed.example.com) — 2025-12-22T16:30:15+00:00