New pages
From Rsewiki
- 16:03, 1 February 2026 Robobot logfile cleanup (hist | edit) [1,467 bytes] Jca (talk | contribs) (Created page with "Back to Robobot == Logfiles == Many logfiles will accumulate over time. To clean up these files, there are two scripts in the setup directory. A total cleanup could be: cd ~/svn/robobot/setup ./clean_ === Files owned by ''local'' === This script removes all images from the mqtt_python directory and automatically generated log files. clean_logfiles.bash: #!/bin/bash # clean logfiles before flash image # teensy_interface rm -r /home/local/svn/r...")
- 14:39, 29 January 2026 Robobot packing list (hist | edit) [878 bytes] Jca (talk | contribs) (Created page with "Back to Robobot == 2026 packing list == * Robot with ** Base PCB version 8.5 ** Raspberry Pi version 4 or 5 ** SD-card with base image (updated per 29 jan 2026) ** Raspberry Pi camera version 2.1 ** Servo Savox - version SA-1230SG - with horn for high torque * Battery 2.2Ah Lipo 3 cells - XT60 plug. * Charger (new 1.5A) ** 230V cable for charger * Japcell power supply 15V 6A with XT60 plug ** 230V cable for power supply * Small servo XWAVE X9MG * Extend...")
- 12:10, 29 January 2026 Robobot Raspberry strange error (hist | edit) [5,559 bytes] Jca (talk | contribs) (Created page with "Back to Robobot == Error== The demo behaviour (pressing the green button) fails, typically after a few (< 10) successful runs. It could be that some commands (e.g., servo or drive commands) do not run. After some time, nothing runs, and the Python script complains that there is no 'HBT data after 31 runs'. like: % BCM GPIO found OK % Starting % Connected to MQTT Broker localhost on 1883 % ConnectedOut to MQTT Broker localhost on 1883 % GPIO setup...")
- 14:01, 24 January 2026 Servo supply issue (hist | edit) [1,218 bytes] Jca (talk | contribs) (Created page with "Back to Robobot_B == The 5V supply is OFF == The 5V servo supply may suddenly turn off. The issue is that when the servo stops, the extra energy is returned to the supply. The power supply enters shutdown mode when current flows in the reverse direction and can only be reset by a power cycle. It looks like this: 500px The Orange and blue are the servo power (5V), and the green is the control pulse to the servo. * The servo r...")
- 11:24, 8 January 2026 Regbot motor parameters (hist | edit) [7,389 bytes] Jca (talk | contribs) (Created page with "Back to Regbot == Motor parameters == The Regbot has a built-in estimator of motor parameters. This relies on a poorly designed motor current measurement and noisy velocity measurements. == Measured values == These measurements were taken during maintenance in January 2026; not all values were saved, but the list can be used as a guide, when creating a simulated model of the robot.")
- 17:54, 28 December 2025 Regbot motor parameter estimate (hist | edit) [13,804 bytes] Jca (talk | contribs) (Created page with "== List from regbot_GUI == Merged in spreadsheet in doc folder. % ID Name HW type Gear Ticks per rev left radius right radius date time K-left K-right R-left R-right L-left L-right D_left D_right % (m) (m) (YY-MM-DD) (hh:mm:ss.dd) (V/(rad/sec)) (V/(rad/sec)) (Ohm) (Ohm) (Henry) (Henry) (Nm/(rad/sec)) (Nm/(rad/sec)) 001 Emma 9 9.68 48 0.03 0.03 2025-12-23 11:05:53.33 0.0094 0.0096 2.44 3.89 0.0056 0.0064 1.15E-06 8.16E-07 002 Sofia 9 9.68 48 0.03 0.03 2025-12...")
- 16:24, 28 December 2025 Regbot maintenance notes (hist | edit) [150 bytes] Jca (talk | contribs) (Created page with "Back to regbot == Status notes == Settings and update date. Motor parameters.")
- 16:25, 7 December 2025 Regbot balance details (hist | edit) [2,855 bytes] Jca (talk | contribs) (Created page with "Back to Regbot == Getting to balance== The double-click balance function is tested on some robots. The robots are not totally equal: * The balance point varies by about 5 degrees. * One robot has a line-sensor board that gives a more even weight distribution. * The motor parameters vary. The Robots are placed on all three wheels. This is the most challenging start position to get into balance. The mission is thread=1 log=2:time=0.01 topos=0,bal=1,vel=0....")
- 11:29, 11 November 2025 Ricbot (hist | edit) [14,706 bytes] Jca (talk | contribs) (Created page with " == Ricbot, a wheeled sensor platform == Ricbot is intended for fast deployment to areas of interest. Main features: * Reused motors and wheels from an old "Elector Wheelie" platform * Designed to fit into a normal car for deployment, i.e can be disassembled to no more than 55cm in height. * No more than 25-30 kg, requiring 1 or 2 persons to load or unload. * Wheel-odometry recording (and timestamped) * camera image recording (and timestamped), intension is Realsense...")
