# Robot doesn't move after push\_command

**URL:** <https://forum.hello-robot.com/t/robot-doesnt-move-after-push-command/820>\
**Category:** Ask\
**Created:** [October 2, 2023, 6:54pm UTC](https://forum.hello-robot.com/t/robot-doesnt-move-after-push-command/820 "2023-10-02T18:54:35Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Hung-Te\_Wu](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/hung-te_wu/32/524_2.png) [@Hung-Te\_Wu](https://forum.hello-robot.com/u/Hung-Te_Wu)\
**Post date:** [October 2, 2023, 6:54pm UTC](https://forum.hello-robot.com/t/robot-doesnt-move-after-push-command/820/1 "2023-10-02T18:54:35Z")

</div>

i have faced issues with only being able to command each part of the robot once. e.g. after a push command to move robot.arm, i cannot push another command to move robot.arm again unless i recalibrate the robot in the terminal by calling stretch\_robot\_home.py.

---

<div class="post-metadata">

**Author:** ![Mohamed\_Fazil](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/mohamed_fazil/32/261_2.png) [@Mohamed\_Fazil](https://forum.hello-robot.com/u/Mohamed_Fazil)\
**Post date:** [October 3, 2023, 6:41pm UTC](https://forum.hello-robot.com/t/robot-doesnt-move-after-push-command/820/2 "2023-10-03T18:41:02Z")

</div>

Greeting @Hung-Te_Wu. As a first step, could you try upgrading the Stretch Body and Tools to the latest version if it is not yet upgraded and retry pushing multiple motion commands?  
`pip3 install -U hello-robot-stretch-body`  
`pip3 install -U hello-robot-stretch-body-tools`

Further if the issue still exists, could perform the following debug steps:

- Try jogging the arm/lift/base individually using the CLI tools: `stretch_arm_jog.py`/ `stretch_lift_jog.py`/`stretch_base_jog.py`
  - Does the individual joints move?
  - If possible, could you attach the outputs of these commands

- Send us the output of `stretch_robot_system_check.py`
- Send us a script to reproduce the issue you are facing

---

<div class="post-metadata">

**Author:** ![Hung-Te\_Wu](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/hung-te_wu/32/524_2.png) [@Hung-Te\_Wu](https://forum.hello-robot.com/u/Hung-Te_Wu)\
**Post date:** [October 3, 2023, 8:24pm UTC](https://forum.hello-robot.com/t/robot-doesnt-move-after-push-command/820/3 "2023-10-03T20:24:37Z")

</div>

Hi @Mohamed_Fazil, thanks for the reply.

pip3 installing did not solve the problem. Jogging the arm individually also did not move the parts.

The output of stretch\_arm\_jog.py is the following:

* * *

## howard-gesture@stretch-re1-1041:~$ stretch\_arm\_jog.py For use with S T R E T C H (R) RESEARCH EDITION from Hello Robot Inc.

* * *

m: menu  
i / o : small in out  
I / O : large in out  
f: stiffness float  
s: stiffness soft  
h: stiffness hard  
1: rate slow  
2: rate default  
3: rate fast  
4: rate max  
q: quit

## Input? ----- Arm ------ Pos (m): 0.07999671566647522 Vel (m/s): -0.0004468031605360779 Soft motion limits (m) [0.0, 0.5181478787417008] Timestamp PC (s): 1696359447.2533283

## Mode MODE\_SAFETY x\_des (rad) 0 (deg) 0.0 v\_des (rad) 25 (deg) 1432.3944878270581 a\_des (rad) 15 (deg) 859.4366926962349 Stiffness 1 Feedforward 0 Pos (rad) 11.662919044494629 (deg) 668.236038052293 Vel (rad/s) -0.06514053791761398 (deg) -3.7322778978911897 Effort (Ticks) 1.1210387714598537e-44 Effort (Pct) 4.533612678697937e-45 Current (A) 1.45075605718334e-46 Error (deg) 0.0 Debug 0.0 Guarded Events: 6 Diag 00000000000000000000000100000001 Position Calibrated: True Runstop on: False Near Pos Setpoint: False Near Vel Setpoint: False Is Moving: False Is Moving Filtered: 0 At Current Limit: False Is MG Accelerating: False Is MG Moving: False Encoder Calibration in Flash: True In Guarded Event: False In Safety Event: False Waiting on Sync: False Timestamp (s) 1696359447.2531343 Board variant: Stepper.Guthrie.V1 Firmware version: Stepper.v0.0.1p0

m: menu  
i / o : small in out  
I / O : large in out  
f: stiffness float  
s: stiffness soft  
h: stiffness hard  
1: rate slow  
2: rate default  
3: rate fast  
4: rate max  
q: quit

Input?

* * *

The output of stretch\_robot\_system\_check.py is the following:

* * *

## howard-gesture@stretch-re1-1041:~$ stretch\_robot\_system\_check.py For use with S T R E T C H (R) RESEARCH EDITION from Hello Robot Inc.

[WARNING] [robot]: Not able to use asyncio for transport communications. Defaulting to sync.

---- Checking Devices ----  
[Pass] : hello-wacc  
[Pass] : hello-motor-left-wheel  
[Pass] : hello-pimu  
[Pass] : hello-lrf  
[Pass] : hello-dynamixel-head  
[Pass] : hello-dynamixel-wrist  
[Pass] : hello-motor-arm  
[Pass] : hello-motor-right-wheel  
[Pass] : hello-motor-lift  
[Pass] : hello-respeaker

---- Checking Pimu ----  
[Pass] Voltage = 13.23493480682373  
[Pass] Current = 1.6320662244277844  
[Pass] Temperature = 35.70894293296031  
[Pass] Cliff-0 = 2.296875  
[Pass] Cliff-1 = 6.44403076171875  
[Pass] Cliff-2 = 1.694122314453125  
[Pass] Cliff-3 = -5.9464111328125  
[Pass] IMU AZ = -9.764451026916504  
[Pass] IMU Pitch = -2.18147087097168  
[Pass] IMU Roll = 1.6483917236328127

---- Checking EndOfArm ----  
[Pass] Ping of: stretch\_gripper  
[Pass] Calibrated: stretch\_gripper

[Pass] Ping of: wrist\_pitch

[Pass] Ping of: wrist\_roll

[Pass] Ping of: wrist\_yaw  
[Pass] Calibrated: wrist\_yaw

---- Checking Head ----  
[Pass] Ping of: head\_pan

[Pass] Ping of: head\_tilt

---- Checking Wacc ----  
[Pass] AX = 10.682317733764648

---- Checking hello-motor-left-wheel ----  
[Pass] Position = 11.884260177612305

---- Checking hello-motor-right-wheel ----  
[Pass] Position = 12.056734085083008

---- Checking hello-motor-arm ----  
[Pass] Position = 11.664052963256836  
[Pass] Position Calibrated = True

---- Checking hello-motor-lift ----  
[Pass] Position = 62.842681884765625  
[Pass] Position Calibrated = True

---- Checking for Intel D435i ----  
Bus 002 Device 002: ID 8086:0b3a Intel Corp. Intel(R) RealSense™ Depth Camera 435i  
[Pass] : Device found

---- Checking Software ----  
[Warn] Ubuntu 20.04 not ready (ros-noetic-librealsense2 not set-up correctly)  
[Warn] Firmware not up-to-date (try REx\_firmware\_updater.py --recommended)  
hello-pimu = v0.0.1p0  
hello-wacc = v0.1.0p1  
hello-motor-arm = v0.0.1p0  
hello-motor-lift = v0.0.1p0  
hello-motor-left-wheel = v0.0.1p0  
hello-motor-right-wheel = v0.0.1p0  
[Pass] Python pkgs are up-to-date  
Stretch Body = 0.5.7  
Stretch Body Tools = 0.5.2  
Stretch Tool Share = 0.2.8  
Stretch Factory = 0.4.10  
Stretch Diagnostics = 0.0.14  
[Warn] ROS Noetic not ready (stretch\_core missing)

* * *

I didn’t run a script, it was just simply type in the following command in the terminal to control the Stretch RE1:  
$ pkill -f stretch\_xbox\*  
$ stretch\_robot\_home.py  
$ ipython  
robot.arm.move\_to(0.1)  
robot.push\_command() # this command works and the arm moved

robot.arm.move\_to(0.1)  
robot.push\_command() # this command doesn’t work

The same thing happened when I ran $ stretch\_xbox\_controller\_teleop.py in the terminal, the arm and life only responded for the first time when I moved the joy stick, and didn’t have any respond after that; however, the DexWrist does work perfectly fine.

---

<div class="post-metadata">

**Author:** ![Mohamed\_Fazil](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/mohamed_fazil/32/261_2.png) [@Mohamed\_Fazil](https://forum.hello-robot.com/u/Mohamed_Fazil)\
**Post date:** [October 3, 2023, 8:57pm UTC](https://forum.hello-robot.com/t/robot-doesnt-move-after-push-command/820/4 "2023-10-03T20:57:45Z")

</div>

@Hung-Te_Wu As you can see from the software section of the Stretch Sytem Check’s output, all of your robot’s devices’ firmware seems to be outdated(~ v0.1).

> [@Hung-Te\_Wu](#):
>
> [Warn] Firmware not up-to-date (try REx\_firmware\_updater.py --recommended)  
> hello-pimu = v0.0.1p0  
> hello-wacc = v0.1.0p1  
> hello-motor-arm = v0.0.1p0  
> hello-motor-lift = v0.0.1p0  
> hello-motor-left-wheel = v0.0.1p0  
> hello-motor-right-wheel = v0.0.1p0

Our newest software is compatible with firmware v0.5.0 and above. As the next step, I recommend you update all the device’s Firmware to the latest. You can update all the device’s firmware to the latest using the command:

```auto
REx_firmware_updater.py --install

```

Ensure your lift is clamped underneath before starting the [firmware update](https://docs.hello-robot.com/0.2/stretch-firmware/docs/tutorial_updating_firmware/). Contact [support@hello-robot.com](mailto:support@hello-robot.com) if you get into any trouble while updating the firmware.

Let us know if updating the firmware resolved your issue.

---

<div class="post-metadata">

**Author:** ![Hung-Te\_Wu](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/hung-te_wu/32/524_2.png) [@Hung-Te\_Wu](https://forum.hello-robot.com/u/Hung-Te_Wu)\
**Post date:** [October 4, 2023, 4:50pm UTC](https://forum.hello-robot.com/t/robot-doesnt-move-after-push-command/820/5 "2023-10-04T16:50:39Z")

</div>

Hi @Mohamed_Fazil thanks for the suggestion. The problem was fixed!

---

<div class="post-metadata">

**Author:** ![Mohamed\_Fazil](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.hello-robot.com/mohamed_fazil/32/261_2.png) [@Mohamed\_Fazil](https://forum.hello-robot.com/u/Mohamed_Fazil)\
**Post date:** [October 4, 2023, 7:05pm UTC](https://forum.hello-robot.com/t/robot-doesnt-move-after-push-command/820/6 "2023-10-04T19:05:21Z")

</div>

@Hung-Te_Wu Glad you were able to fix the issue!
