--- title: "#esp-now articles | Hashnode" description: "Explore 1 articles tagged #esp-now on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/esp-now" --- Tag # #esp-now 1 posts · 0 followers [circuitrocks](https://hashnode.com/@circuitrocks) · [Oct 6](https://hashnode.com/posts/two-esp32s-talk-over-light-using-just-one-led-each/6ac4bc01aaf4e1700a7c21f8) ### [Two ESP32s Talk Over Light Using Just One LED Each](https://circuitrocks.hashnode.dev/two-esp32s-talk-over-light-using-just-one-led-each?utm_source=hashnode&utm_medium=feed) Two ESP32s Talk Over: SecurePair lets two ESP32 boards pair and swap encryption keys over visible light, with one LED per board doing double duty as… 3 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/two-esp32s-talk-over-light-using-just-one-led-each?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Aug 30](https://hashnode.com/posts/wireless-esp32-bike-brakes-abs-from-car-door-lock-actuators/6a94a95e9736677f2c604a60) ### [Wireless ESP32 Bike Brakes: ABS From Car Door Lock Actuators](https://circuitrocks.hashnode.dev/wireless-esp32-bike-brakes-abs-from-car-door-lock-actuators?utm_source=hashnode&utm_medium=feed) A fat-bike brake with no cable at all: ESP32 nodes talking over ESP-NOW drive car door lock actuators, unlocking ABS and an adjustable bite point. 3 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/wireless-esp32-bike-brakes-abs-from-car-door-lock-actuators?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Jul 23](https://hashnode.com/posts/esp32-bowling-scoring-system-beats-a-120k-proprietary-quote/6a6193567d69a8ffe376b9df) ### [ESP32 Bowling Scoring System Beats a $120K Proprietary Quote](https://circuitrocks.hashnode.dev/esp32-bowling-scoring-system-beats-a-120k-proprietary-quote?utm_source=hashnode&utm_medium=feed) ESP32 Bowling Scoring System: An engineer replaced a $120,000 bowling scoring system with $1,600 of ESP32 boards, ESP-NOW mesh, and a Raspberry Pi. 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/esp32-bowling-scoring-system-beats-a-120k-proprietary-quote?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Jul 21](https://hashnode.com/posts/esp32-mesh-replaces-a-120k-bowling-scoring-system-for-1600/6a5f35b7e667c6ecf3c5b4b1) ### [ESP32 Mesh Replaces a $120k Bowling Scoring System for $1,600](https://circuitrocks.hashnode.dev/esp32-mesh-replaces-a-120k-bowling-scoring-system-for-1600?utm_source=hashnode&utm_medium=feed) ESP32 Mesh Replaces 120k: An abandoned 8-lane bowling center needed an $80k scoring system. 3 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/esp32-mesh-replaces-a-120k-bowling-scoring-system-for-1600?utm_source=hashnode&utm_medium=feed) [circuitrocks](https://hashnode.com/@circuitrocks) · [Jun 13](https://hashnode.com/posts/build-your-own-esp32-walkie-talkies-with-esp-now/6a2dd4946495074e2a390986) ### [Build Your Own ESP32 Walkie-Talkies With ESP-NOW](https://circuitrocks.hashnode.dev/build-your-own-esp32-walkie-talkies-with-esp-now?utm_source=hashnode&utm_medium=feed) Own ESP32 Walkie-Talkies ESP-NOW: A pair of XIAO ESP32S3 boards plus ESP-NOW make 3D-printed walkie-talkies that hold a voice link past 200 meters, no… 2 min read · [circuitrocks.hashnode.dev](https://circuitrocks.hashnode.dev/build-your-own-esp32-walkie-talkies-with-esp-now?utm_source=hashnode&utm_medium=feed) [Ayushi Lathiya](https://hashnode.com/@ayushilathiya) · [Dec 25, 2024](https://hashnode.com/posts/a-guide-to-esp-now-unidirectional-communication/67969415d25233299edd0317) ### [A Guide to ESP-NOW: Unidirectional Communication](https://ayushilathiya.hashnode.dev/a-guide-to-esp-now-unidirectional-communication?utm_source=hashnode&utm_medium=feed) Explore the low-latency protocol boosting smooth and effective wireless connections. 2 min read · [ayushilathiya.hashnode.dev](https://ayushilathiya.hashnode.dev/a-guide-to-esp-now-unidirectional-communication?utm_source=hashnode&utm_medium=feed)