Predictable Designs with John Teel
93K subscribers
I teach how to develop and manufacture new electronic products. I'm a former microchip design engineer from Texas Instruments, where I designed chips used in millions of products, including devices from Apple. I also developed and launched my own hardware product which sold in hundreds of retail stores, so I understand the entire journey firsthand. On this channel, I share everything it takes to go from concept to production including prototyping, PCB design, enclosure design, certifications, and manufacturing.
9 Schematic Rules to NEVER Break
Predictable Designs with John Teel · 110K views · 1 day ago
7 Capacitors You Should NEVER Use in a Product
Predictable Designs with John Teel · 89K views · 8 days ago
9 Firmware Shortcuts You Should NEVER Ship in a Product
Predictable Designs with John Teel · 63K views · 2 weeks ago
9 Reasons Your 3D Printed Enclosure Can NEVER Be Mass Produced
Predictable Designs with John Teel · 82K views · 3 weeks ago
11 PCB Layout Rules to NEVER Break
Predictable Designs with John Teel · 154K views · 4 weeks ago
7 Protection Circuits You Should NEVER Ship a Product Without
Predictable Designs with John Teel · 217K views · 1 month ago
9 AliExpress Components You Should NEVER Use in a Product
Predictable Designs with John Teel · 33K views · 1 month ago
7 Batteries You Should NEVER Use in a Product
Predictable Designs with John Teel · 42K views · 1 month ago
6 Hardware Decisions You Should NEVER Trust AI to Make
Predictable Designs with John Teel · 19K views · 1 month ago
7 Sensors You Should NEVER Use in a Product
Predictable Designs with John Teel · 452K views · 2 months ago
Enclosure Decisions You Must Make Before Finishing Your PCB
Predictable Designs with John Teel · 5.7K views · 2 months ago
Why Your Manufacturer Won't Catch Your Design Mistakes
Predictable Designs with John Teel · 3.4K views · 2 months ago
5 Ways Your Prototype Is Lying to You
Predictable Designs with John Teel · 6.6K views · 2 months ago
How to Turn Your Prototype Into a Custom PCB
Predictable Designs with John Teel · 5.1K views · 3 months ago
5 Gaps Between Your Working Prototype and a Real Product
Predictable Designs with John Teel · 3.7K views · 3 months ago
9 Voltage Regulators You Should NEVER Use in Your Product
Predictable Designs with John Teel · 46K views · 3 months ago
ESP32-S3 vs ESP32-C6 vs ESP32-P4: Which One for Your Product?
Predictable Designs with John Teel · 34K views · 3 months ago
9 Wireless Modules You Should NEVER Use in a Product
Predictable Designs with John Teel · 6.8K views · 4 months ago
ESP32 vs RP2350: Which Wins for Your Product?
Predictable Designs with John Teel · 13K views · 4 months ago
STM32 vs GD32 vs CH32: Should You Trust the Cheaper Alternatives?
Predictable Designs with John Teel · 9K views · 4 months ago
Every Development Platform Ranked Worst to Best (for Your Product)
Predictable Designs with John Teel · 16K views · 4 months ago
7 Arduino Boards You Should NEVER Use for a Product
Predictable Designs with John Teel · 8.9K views · 5 months ago
MCU vs MPU: Which Is Right for Your Product?
Predictable Designs with John Teel · 6.3K views · 5 months ago
Every Major MCU Family Ranked Worst to Best
Predictable Designs with John Teel · 42K views · 5 months ago
10 Components You Should NEVER Use in a Product
Predictable Designs with John Teel · 67K views · 5 months ago
ESP32 vs Arduino vs Raspberry Pi: Which Should You Use in Your Product?
Predictable Designs with John Teel · 19K views · 5 months ago
7 Microcontrollers You Should NEVER Use in a Product
Predictable Designs with John Teel · 184K views · 6 months ago
You Build the Product. AI Agents Handle the Marketing
Predictable Designs with John Teel · 2.3K views · 6 months ago
Dev Kit → Module → Bare Chip: When to Move On
Predictable Designs with John Teel · 9.4K views · 6 months ago
Why Hardware Founders Win in 2026
Predictable Designs with John Teel · 7.5K views · 6 months ago