Why People Can Always Tell When AI Wrote Your Text
Young adults are letting ChatGPT draft their texts and hard conversations. Here's why it's obvious and what actually works instead.
I’m developing a next-generation padlock that couples robust physical security with modern electronics. The core idea is a tamper-resistant body housing a low-power PCB that supports BLE unlocking, RFID credential reading and an always-on GPS module. A compact solar panel must keep the cell topped up so the lock can sit in the field for long stretches without manual charging. Here is the outline I need your help bringing to life: • Electronics: choose components, lay out the PCB and write the embedded code so the lock wakes only when needed, yet still logs location pings. Expect Nordic-style BLE, an ultra-low-power GPS, RFID reader IC, power-path management and secure element for key storage. • Power strategy: harvest energy from the solar cell, switch gracefully to an ...
I'm looking for an experienced electronics engineer to develop a balance charger and discharger specifically for RC drones. The charger should support LiPo and Li-ion batteries, with a maximum voltage of 16.8V. Key Requirements: - Balance charging and discharging functionality - Support for LiPo and Li-ion battery types - Maximum voltage support of 16.8V - Suitable for RC drones - The user should be able to select the battery type, battery cells(1s,2s,3s,4s), calibrate voltage, modes such as quick charging/balance charging/discharging/storage charging. - The user should also be able to select the current. Ideal Skills and Experience: - Expertise in battery management systems - Expert in RC battery such as LiPo and Li-ion battery - Knowledge in embedded systems - Knowledge designing ...
I’m opening up a Score 7T (Keefe Group) tablet built on the MediaTek MT8168, board id tb8168p1_bsp, and I need to force it into BROM mode by shorting the correct test points on the motherboard. I’ve done a few hardware-point jobs before, so I understand basic safety and ESD practice, but I want to follow an exact, proven sequence this time. What I expect from you • A clear, step-by-step set of written instructions—my preferred format—covering disassembly, test-point identification (CLK/DAT0 or any pad combination that actually works on this board), timing of the short, and verification with mtkclient. • High-resolution reference photos or annotated diagrams of the Score 7T PCB highlighting the precise spots to short. • Any firmware-side preparati...
I’m building a compact, modular charging station for VRLA / AGM motorcycle batteries and I need the electronics and firmware that will let riders see real-time battery health on a dedicated physical display panel. Modular battery charger for VRLA / AGM motorcycle batteries The core of the job is the health-monitoring logic rather than charge control. I want the system to track three specific parameters—voltage levels, temperature, and accumulated charge cycles—and present them clearly on a small, ruggedized screen that can be mounted on the charging dock or the bike itself. Think of it as a “fuel gauge” for the battery, always on and readable at a glance, no phone or web connection required. Key things I’m looking for: • Hardware schematic an...
I use a NovelSat NS4 satellite receiver and, right now, every new channel search means typing each TP by hand. I want true blind-scan capability added so the unit automatically sweeps both transponder and frequency ranges without any manual input. You’ll need to work directly with the NS4’s existing firmware or supply an external solution (plug-in, patched image, or compatible software utility) that unlocks this feature. The end result should let me press a single command, watch the receiver scan, and see all available TPs and their frequencies populate on-screen just as factory blind-scan models do. Key deliverables: • A fully tested auto blind-scan function for the NovelSat NS4 covering both TP and frequency search • Clear step-by-step installation or flashing i...
I’m commissioning a complete digital blueprint for an AI “soul reader” device whose core function is naming the soul of a blueprint person that is born. Unlike conventional wearables that look only at pulse or sleep cycles, this concept revolves around two signature metrics I refer to as the dark matter and the light matter. Think of them as a device that scans the eyes or thumbprint of someone. A complementary data streams that reveal the hidden language or a decryption or the blueprint of an individual. This will be used in hospitals after someone is born. Here’s what I need delivered: • A detailed architecture document (PDF or other easily viewable digital format) that explains every hardware and firmware layer required to sense, process, and display ...
My desktop’s hard drive suddenly vanished from both the BIOS and the operating system. All cables and power leads appear firmly seated, yet the drive will not spin up or register on any SATA port I try. I need a skilled hardware repair-focused technician to diagnose the root cause and bring the drive back to a state where it is reliably detected again. The job is strictly hardware-level: testing the drive on proper benches, checking the PCB and controller, inspecting the power delivery, replacing or repairing any failed components, and verifying the unit in a working test rig. If a donor board or firmware flash is required, please let me know beforehand so I can approve sourcing. Deliverables • A repaired hard drive that mounts consistently on a standard SATA interface &bu...
固件提取 固件完整性验证 分析环境搭建 固件分析 功能开发/验证 烧录方案开发 空白 IC 及测试样片测试 改样片循环跟寿命
I need an embedded-software specialist who can take my collection of Wi-Fi and LoRaWAN gateways and assorted sensors and knit them into a single, production-ready IoT platform. The job covers the full stack from firmware that runs on the edge devices through to the application layer that users will see. Core capabilities the platform must deliver: • Data collection from every gateway and sensor • Robust device management (on-boarding, remote configuration, OTA updates) • Built-in analytics so I can visualise trends and run simple rules without exporting data elsewhere You’ll be free to recommend languages, embedded RTOS options, and cloud back-ends, provided they reliably handle both Wi-Fi and LoRaWAN traffic and scale cleanly as more hardware is added. Deliverables...
Hello Yernaidu, Thank you for your proposal. I'm interested in working with you on my Big Hero 6-inspired modular micro-robot project. I would like to clarify exactly what is included in your **$30 quotation**. Does this price cover the complete engineering design package, including: 1. Complete mechanical CAD and 3D modeling (editable source files, STEP, STL, and manufacturing drawings). 2. PCB schematic and layout design, including Gerber files and BOM. 3. Two independently controlled robotic arms with adjustable angles and a target of 360° rotation. 4. Forward and backward movement mechanism. 5. Robot-to-robot docking and separation mechanisms. 6. Relative position detection between robots. 7. Bluetooth communication and microcontroller firmware. 8. Python-based PC software...
1. Project Overview & Architecture The goal of this project is to design a set of modular, decentralized expansion PCB boards for grow tent automation. Instead of a rigid central mainboard, each expansion board functions as an independent node powered by a localized ESP32-C3 Supermini module, communicating via Wi-Fi/MQTT through ESPHome into Home Assistant. To reduce clutter and eliminate the need for multiple external power supplies, all boards will share a common power distribution concept: 12V DC Input (via standard 5.5x2.5mm barrel jacks or terminal blocks) with onboard step-down regulation (e.g., Buck converters) to supply 5V and 3.3V where needed, allowing a single 12V barrel power supply to be daisy-chained across boards. 2. General Requirements for All Boards Microcontroller: ...
I am looking for an experienced power electronics engineer or engineering team to design a residential-scale hybrid solar inverter for commercial production. The project involves developing a single-phase, 230 V AC, 50 Hz pure sine-wave hybrid inverter that integrates rooftop solar panels, a lithium battery bank and the utility grid. The design should prioritise high efficiency, reliability, safety and ease of manufacturing. I prefer an engineer with previous experience designing working solar inverters, grid-connected converters, MPPT controllers and bidirectional battery systems. An existing, validated reference design that can be licensed or transferred is preferred. 1. Target Specifications Rated power: 1–5 kW continuous AC output: 230 V RMS, single phase, 50 Hz Output wave...
I need a skilled PCB designer to convert my existing through-hole PCB, designed in Fritzing, into an SMD PCB for production using KiCad. The design works great, but I need it to be SMD. Requirements: - Convert the following components from through-hole to SMD: - ICs (including ESP32, A7670G modules, and charge controller) - Use of standard footprints for all SMD components. Ideal Skills and Experience: - Proficiency in KiCad - Experience with SMD PCB design and layout - Familiarity with the specified components (ESP32, A7670G, charge controllers) - Attention to detail and accuracy in design Please provide samples of previous SMD PCB designs.
Young adults are letting ChatGPT draft their texts and hard conversations. Here's why it's obvious and what actually works instead.
OpenAI's model broke its own security test and attacked Hugging Face. Here's why AI still can't test AI safely.
Huge opportunity for ongoing work from a massive new Freelancer project