https://th3seus.net/guides In-depth drone building guides covering motors, batteries, flight controllers, soldering, regulations, and advanced engineering. en-us guides@th3seus.net (TH3SEUS Team) https://th3seus.net/guides/advanced-engineering/companion-computer-setup https://th3seus.net/guides/advanced-engineering/companion-computer-setup How to set up a companion computer on an autonomous drone — hardware selection, MAVLink connection, MAVROS on ROS 2, DroneKit, computer vision, and power management. Thu, 19 Mar 2026 00:00:00 GMT advanced-engineering https://th3seus.net/guides/advanced-engineering/emi-noise-uav-electronics https://th3seus.net/guides/advanced-engineering/emi-noise-uav-electronics How to identify, filter, and eliminate EMI and electrical noise in UAV electronics — from ESC switching noise to gyro vibration, with PCB layout rules and measurement techniques. Thu, 19 Mar 2026 00:00:00 GMT advanced-engineering https://th3seus.net/guides/advanced-engineering/mavlink-telemetry-guide https://th3seus.net/guides/advanced-engineering/mavlink-telemetry-guide Complete guide to MAVLink telemetry for drones — protocol overview, hardware options, GCS setup, link budget, latency tradeoffs, encrypted telemetry, and debugging. Thu, 19 Mar 2026 00:00:00 GMT advanced-engineering https://th3seus.net/guides/building/drone-weight-estimation https://th3seus.net/guides/building/drone-weight-estimation How to estimate your drone's all-up weight before building — component weight breakdown, budget planning by tier, BOM approach, and weight optimization strategies. Thu, 19 Mar 2026 00:00:00 GMT building https://th3seus.net/guides/building/how-to-build-a-drone https://th3seus.net/guides/building/how-to-build-a-drone Step-by-step guide to building a drone from scratch — frame selection, motors, ESCs, flight controller, wiring, firmware, and first flight. Thu, 19 Mar 2026 00:00:00 GMT building https://th3seus.net/guides/building/soldering-tips-for-drone-builders https://th3seus.net/guides/building/soldering-tips-for-drone-builders Practical soldering techniques for drone assembly: tools, temperatures, tinning, and common mistakes to avoid. Thu, 19 Mar 2026 00:00:00 GMT building https://th3seus.net/guides/communication/crossfire-vs-elrs https://th3seus.net/guides/communication/crossfire-vs-elrs In-depth comparison of TBS Crossfire and ExpressLRS — range, latency, packet rates, hardware, cost, and which RC link is right for your build in 2026. Thu, 19 Mar 2026 00:00:00 GMT communication https://th3seus.net/guides/communication/drone-antenna-guide https://th3seus.net/guides/communication/drone-antenna-guide Everything you need to know about drone antennas — types, gain, polarization, frequency bands, and placement rules for FPV, RC links, and long-range builds. Thu, 19 Mar 2026 00:00:00 GMT communication https://th3seus.net/guides/communication/elrs-setup-guide https://th3seus.net/guides/communication/elrs-setup-guide Step-by-step guide to setting up ExpressLRS — flashing TX modules and RX, binding, Betaflight configuration, Lua script, and troubleshooting common issues. Thu, 19 Mar 2026 00:00:00 GMT communication https://th3seus.net/guides/communication/rf-link-budget-for-long-range https://th3seus.net/guides/communication/rf-link-budget-for-long-range How to calculate and design RF link budgets for long-range drones — Friis equation, EIRP, path loss, fade margin, frequency selection, and 50km+ system design examples. Thu, 19 Mar 2026 00:00:00 GMT communication https://th3seus.net/guides/flight-controllers/best-flight-controllers-2026 https://th3seus.net/guides/flight-controllers/best-flight-controllers-2026 A comprehensive buyer's guide to the best flight controllers in 2026 — by category, use case, and budget — with spec comparisons and firmware compatibility notes. Thu, 19 Mar 2026 00:00:00 GMT flight-controllers https://th3seus.net/guides/flight-controllers/betaflight-vs-ardupilot https://th3seus.net/guides/flight-controllers/betaflight-vs-ardupilot A detailed comparison of Betaflight and ArduPilot — use cases, control loop architecture, GPS dependency, waypoint support, hardware compatibility, and how to choose. Thu, 19 Mar 2026 00:00:00 GMT flight-controllers https://th3seus.net/guides/flight-controllers/px4-setup-guide https://th3seus.net/guides/flight-controllers/px4-setup-guide A complete beginner's guide to setting up PX4 autopilot — hardware selection, QGroundControl installation, firmware flashing, sensor calibration, RC setup, flight modes, and first flight. Thu, 19 Mar 2026 00:00:00 GMT flight-controllers https://th3seus.net/guides/flight-controllers/px4-vs-ardupilot https://th3seus.net/guides/flight-controllers/px4-vs-ardupilot A thorough comparison of PX4 and ArduPilot flight firmware — architecture, hardware support, use cases, community, and which to choose. Thu, 19 Mar 2026 00:00:00 GMT flight-controllers https://th3seus.net/guides/power/drone-power-distribution https://th3seus.net/guides/power/drone-power-distribution Complete guide to drone power distribution boards — PDB types, current rating, capacitor filtering, BEC regulators, connector selection, wire gauging, and thermal management. Thu, 19 Mar 2026 00:00:00 GMT power https://th3seus.net/guides/power/esc-selection-and-sizing https://th3seus.net/guides/power/esc-selection-and-sizing Complete guide to selecting and sizing ESCs for drones — current ratings, firmware, protocols, 4-in-1 vs individual, and advanced features like RPM filtering and bidirectional DSHOT. Thu, 19 Mar 2026 00:00:00 GMT power https://th3seus.net/guides/power/lipo-battery-guide https://th3seus.net/guides/power/lipo-battery-guide Everything you need to know about LiPo batteries: chemistry, cell count, C-rating, capacity, and safe charging. Thu, 19 Mar 2026 00:00:00 GMT power https://th3seus.net/guides/power/lipo-c-rating-explained https://th3seus.net/guides/power/lipo-c-rating-explained Deep dive into LiPo battery C-ratings — what they mean, the math behind them, how manufacturers misuse them, and how to choose the right C-rating for your build. Thu, 19 Mar 2026 00:00:00 GMT power https://th3seus.net/guides/propulsion/drone-propulsion-system-design https://th3seus.net/guides/propulsion/drone-propulsion-system-design Comprehensive guide to designing a drone propulsion system — motor physics, propeller aerodynamics, thrust-to-weight targets, efficiency optimization, and advanced topics. Thu, 19 Mar 2026 00:00:00 GMT propulsion https://th3seus.net/guides/propulsion/motor-kv-ratings-explained https://th3seus.net/guides/propulsion/motor-kv-ratings-explained Understanding brushless motor KV ratings and how they affect drone performance, RPM, and thrust. Thu, 19 Mar 2026 00:00:00 GMT propulsion https://th3seus.net/guides/propulsion/reading-motor-thrust-data https://th3seus.net/guides/propulsion/reading-motor-thrust-data A complete guide to interpreting motor thrust test data — understanding test conditions, thrust tables, efficiency metrics, and how to compare motors using data sheets. Thu, 19 Mar 2026 00:00:00 GMT propulsion https://th3seus.net/guides/regulations/remote-id-guide https://th3seus.net/guides/regulations/remote-id-guide Everything you need to know about drone Remote ID — FAA and EU rules, broadcast vs network Remote ID, hardware modules, DIY OpenDroneID, ArduPilot/PX4 integration, and verification. Thu, 19 Mar 2026 00:00:00 GMT regulations