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A comment on I built a low-cost CAN-bus sensor for air quality/light monitoring using ESP32. Parent comment

Re:I built a low-cost CAN-bus sensor for air quality/light m... by albert007_d on Monday February 02, 2026 @04:49PM (#46862142)
This solution uses 2pair standard rj11 telephone cable(tested upto 15meters - can be longer) - one pair is for CAN-L/CAN-H and 2nd pair is for dc supply between 6v to 24v, esp32 firmware offers failsafe A/B upgrade mechanism over CAN.
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