thompsonplc

@lthompson · Joined May 2025

Newcomer

Automation engineer · pharma · 14 years in the field

Topics: 7
Replies: 65
Points: 0

Newcomer10 points to Member

Forum Topics Started

Topics Replies Voices Last post

Solved 20×4 I2C LCD on the cleanroom pressure display only shows a row of solid blocks

by thompsonplc in Arduino · 5 replies

5 4 3 months, 3 weeks ago by thompsonplc

Solved “No default controller available” on an old Pi 3 with Stretch, needed for BLE cold-room tags

by thompsonplc in Raspberry Pi · 5 replies

5 4 10 months, 1 week ago by thompsonplc

Solved STM32 with a MAX3485 gets my own echo and loses the start of the Modbus reply

by thompsonplc in Modbus, OPC UA and fieldbus · 5 replies

5 4 11 months ago by thompsonplc

Solved Forcing an RFM95 node onto 868.1 MHz only, for a bench test against Hermetry LoRaWAN

by thompsonplc in LoRaWAN, NB-IoT and cellular · 6 replies

6 5 1 year, 1 month ago by thompsonplc

Solved HC-05 answers ERROR:(0) to every AT command except plain AT

by thompsonplc in Supported devices and hardware · 4 replies

4 4 1 year, 2 months ago by thompsonplc

Solved Pi as Modbus RTU master for six PIC slaves on one RS-485 line: replies collide and get garbled

by thompsonplc in Modbus, OPC UA and fieldbus · 5 replies

5 4 1 year, 2 months ago by thompsonplc

Solved Alarm when a contactor stays closed after the PLC output drops (welded contacts)

by thompsonplc in Alarms and notifications · 3 replies

3 3 1 year, 5 months ago by thompsonplc