While no canon droid becomes a true Jedi (as droids lack midichlorians), there are notable Legends (non-canon) examples like Skippy the Jedi Droid (an R5 unit who thought he was Force-sensitive) and J-3DI, a programmed droid mimicking Jedi in the Hunters of the Outer Rim series, plus the animated short T0-B1 (non-canon) who dreams of being one. In canon, droids like Huyang train younglings, and BD-1 assists a Jedi, but they don't wield the Force themselves.
In the in-universe article Droids, Technology and the Force: A Clash of Phenomena, the legend of Skippy the Jedi Droid is mentioned. This means that while this Tales story is not wholly canon, the legend of Skippy does exist.
Huyang wasn't recognized as a Jedi, per se, but did oversee countless younglings as they constructed their lightsabers. Skippy is a non-canon astromech Jedi. T0-B1 is similarly a non-canon Force-sensitive droid who wants to be a Jedi. And J-3DI is a droid whose programming leads them to believe they are a Jedi.
Short answer: Yes -- several sentient or near-sentient droids have been Force-sensitive or became Force users in Star Wars canon and Legends, but canonical examples of a droid becoming a full Jedi or Sith are extremely rare and usually qualified.
Sifo-Dyas was a human male Jedi Master from Minashee who commissioned the Kaminoans' creation of the Grand Army of the Republic over a decade before the Clone Wars.
The clone commando RC-1136, known as Darman Skirata, got Jedi Knight Etain Tur-Mukan pregnant during the Clone Wars, resulting in their son, Venku Skirata, a Force-sensitive child born outside the Jedi Code's restrictions. Their forbidden relationship and child's birth were detailed in the Republic Commando novels, highlighting the complexities of clone troopers' development and the strictures of the Jedi Order, as Etain was killed shortly after Order 66 while protecting her family.
Ahsoka Tano from Star Wars: The Clone Wars can also technically be called a Gray Jedi, due to her forsaking the ways of the Jedi, but still following a path of good. However, neither of these two ever trained to use the dark side of the Force, so they are arguably not "true" Gray Jedi.
In Star Wars lore, Order 37 was a grim Clone Trooper contingency plan to capture a wanted individual (often a Jedi) by taking a civilian population hostage, locking down the area, and threatening mass execution if the target wasn't surrendered, making it a horrific tactic used by the Empire to force Jedi compliance. It was considered more brutal than Order 66 because it targeted civilians directly, forcing Jedi to often turn themselves in to save innocent lives, as seen on planets like Bellassa.
The Code forbade the Jedi from killing unarmed opponents as well as seeking revenge. Amongst other dictates, the Jedi Code forbade Jedi Knights and Jedi Masters from training more than one Padawan at a given time. Attachment was also forbidden by the Code.
The droids were based heavily on the design of the MagnaGuards, and proved effective in dealing with the lightsaber-wielding Jedi. Their programming was created from thousands of hours of holorecordings of Jedi in combat. The IG-110 would wield two red lightsabers, which used synthetic lightsaber crystals.
During the production of Star Wars: Episode V The Empire Strikes Back, it was decided that the talkative character of "Lando's aide" would be muted due to his cybernetic implants lobotomizing him. As a reference to this change, the character was named "Lobot," a corruption of the word "lobotomy."
Likely unaware of his true nature, Snoke was an artificial genetic strandcast created on the planet Exegol by the resurgent Dark Lord of the Sith and Galactic Emperor Darth Sidious as a proxy and the product of cloning experiments.
Haja Estree posed as a Jedi. During the reign of the Galactic Empire, the human male Haja Estree resided on the planet Daiyu, working as a con artist.
George said no wookiee Jedi. He did allow a few though because he liked the character or idea behind it. "George Lucas once decreed that there can be no more Wookiee Jedi in the Expanded Universe. [61][62] Notably, Obsidian Entertainment was forbidden to make Hanharr a Dark Jedi because of this restriction.
Han Solo's Only Canon Lightsaber Moment
The Hoth scene in The Empire Strikes Back remains Han Solo's only canonical use of a lightsaber, and it's a testament to his practicality.
R8-B7 was Mace Windu's astromech droid for a brief period during the Clone Wars.
Although the 2002 film Star Wars: Episode II Attack of the Clones established that the Jedi Order members couldn't marry or have children, Star Wars creator George Lucas explained that despite their monastic culture, the Jedi were permitted to have sexual intercourse as long they didn't form attachments or possessive ...
Order 66, also known as Clone Protocol 66, Protocol 66, or simply "the Order," was one of top-secret contingency orders that identified all Jedi as traitors to the Galactic Republic and, therefore, subject to summary execution by the Grand Army of the Republic.
BACKGROUND INFO: What is Order 69? Order 69(AKA "clean up") was the idea to kill the entire clone army in one sitting, leaving the Jedi defenseless and exposed by the sudden departure.
Form VII (Juyo), the "Ferocity Form," was banned by the Jedi Order because it required channeling aggression, anger, and other intense emotions to fuel its wild, relentless, and unpredictable attacks, which closely skirts the dark side and risks corrupting the user, a direct violation of the Jedi Code's emphasis on peace and emotional control, even though Mace Windu later adapted it into the controlled Vaapad variant for a select few.
Clone 99, or simply 99, was a human male clone of Jango Fett bred to be a clone trooper for the Galactic Republic's Grand Army. However, he was rendered genetically defective in the cloning process, and instead of serving in the army, he was assigned to be a maintenance duty clone on his home planet of Kamino.
Ahsoka's departure haunted Yoda for some time afterward; he felt extremely guilty and remorseful, partly for refusing to stand by her and partly for placing her on the path that led to her departure from the Jedi Order. In fact, his guilt was so great that the Dark Side attempted to use it against him, but failed.